Home / 812,763.64-1,121,518.02-468,595.72

Finding the Fourth Proportional to 812,763.64, 1,121,518.02 and 468,595.72

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Solution

The fourth proportional to 812,763.64, 1,121,518.02 and 468,595.72 is: 646,606.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,763.64 : 1,121,518.02 = 468,595.72 : x
  2. Step 2: Convert to fraction form
    812,763.64/1,121,518.02 = 468,595.72/x
  3. Step 3: Cross multiply
    812,763.64x = 1,121,518.02 × 468,595.72
  4. Step 4: Simplify right side
    812,763.64x = 525,538,544,074.87
  5. Step 5: Solve for x
    x = 525,538,544,074.87/812,763.64
  6. Step 6: Final answer
    x = 646,606.86

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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.