Home / 861,703.17-1,189,128.89-474,515.52

Finding the Fourth Proportional to 861,703.17, 1,189,128.89 and 474,515.52

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Solution

The fourth proportional to 861,703.17, 1,189,128.89 and 474,515.52 is: 654,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,703.17 : 1,189,128.89 = 474,515.52 : x
  2. Step 2: Convert to fraction form
    861,703.17/1,189,128.89 = 474,515.52/x
  3. Step 3: Cross multiply
    861,703.17x = 1,189,128.89 × 474,515.52
  4. Step 4: Simplify right side
    861,703.17x = 564,260,109,645.17
  5. Step 5: Solve for x
    x = 564,260,109,645.17/861,703.17
  6. Step 6: Final answer
    x = 654,819.58

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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.