Home / 463,155.20-639,154.17-251,187.20

Finding the Fourth Proportional to 463,155.20, 639,154.17 and 251,187.20

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Solution

The fourth proportional to 463,155.20, 639,154.17 and 251,187.20 is: 346,638.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,155.20 : 639,154.17 = 251,187.20 : x
  2. Step 2: Convert to fraction form
    463,155.20/639,154.17 = 251,187.20/x
  3. Step 3: Cross multiply
    463,155.20x = 639,154.17 × 251,187.20
  4. Step 4: Simplify right side
    463,155.20x = 160,547,343,134.85
  5. Step 5: Solve for x
    x = 160,547,343,134.85/463,155.20
  6. Step 6: Final answer
    x = 346,638.33

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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.