Home / 663,061.77-914,785.11-433,749.69

Finding the Fourth Proportional to 663,061.77, 914,785.11 and 433,749.69

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Solution

The fourth proportional to 663,061.77, 914,785.11 and 433,749.69 is: 598,417.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,061.77 : 914,785.11 = 433,749.69 : x
  2. Step 2: Convert to fraction form
    663,061.77/914,785.11 = 433,749.69/x
  3. Step 3: Cross multiply
    663,061.77x = 914,785.11 × 433,749.69
  4. Step 4: Simplify right side
    663,061.77x = 396,787,757,879.12
  5. Step 5: Solve for x
    x = 396,787,757,879.12/663,061.77
  6. Step 6: Final answer
    x = 598,417.49

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Double scale
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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.