Home / 775,330.71-1,069,874.49-431,111.12

Finding the Fourth Proportional to 775,330.71, 1,069,874.49 and 431,111.12

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Solution

The fourth proportional to 775,330.71, 1,069,874.49 and 431,111.12 is: 594,887.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,330.71 : 1,069,874.49 = 431,111.12 : x
  2. Step 2: Convert to fraction form
    775,330.71/1,069,874.49 = 431,111.12/x
  3. Step 3: Cross multiply
    775,330.71x = 1,069,874.49 × 431,111.12
  4. Step 4: Simplify right side
    775,330.71x = 461,234,784,293.96
  5. Step 5: Solve for x
    x = 461,234,784,293.96/775,330.71
  6. Step 6: Final answer
    x = 594,887.81

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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.