Home / 583,231.20-874,846.71-139,999.20

Finding the Fourth Proportional to 583,231.20, 874,846.71 and 139,999.20

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Solution

The fourth proportional to 583,231.20, 874,846.71 and 139,999.20 is: 209,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,231.20 : 874,846.71 = 139,999.20 : x
  2. Step 2: Convert to fraction form
    583,231.20/874,846.71 = 139,999.20/x
  3. Step 3: Cross multiply
    583,231.20x = 874,846.71 × 139,999.20
  4. Step 4: Simplify right side
    583,231.20x = 122,477,839,522.63
  5. Step 5: Solve for x
    x = 122,477,839,522.63/583,231.20
  6. Step 6: Final answer
    x = 209,998.78

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.