Home / 938,617,362.96-1,295,231,620.68-520,929,931.20

Finding the Fourth Proportional to 938,617,362.96, 1,295,231,620.68 and 520,929,931.20

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Solution

The fourth proportional to 938,617,362.96, 1,295,231,620.68 and 520,929,931.20 is: 718,849,816.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,617,362.96 : 1,295,231,620.68 = 520,929,931.20 : x
  2. Step 2: Convert to fraction form
    938,617,362.96/1,295,231,620.68 = 520,929,931.20/x
  3. Step 3: Cross multiply
    938,617,362.96x = 1,295,231,620.68 × 520,929,931.20
  4. Step 4: Simplify right side
    938,617,362.96x = 674,724,919,048,896,896
  5. Step 5: Solve for x
    x = 674,724,919,048,896,896/938,617,362.96
  6. Step 6: Final answer
    x = 718,849,816.42

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Half scale
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Double scale
Find fourth proportional to 938,617,363.96, 1,295,231,622.06 and 520,929,932.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.