Home / 639,731.70-961,023.15-534,755.70

Finding the Fourth Proportional to 639,731.70, 961,023.15 and 534,755.70

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Solution

The fourth proportional to 639,731.70, 961,023.15 and 534,755.70 is: 803,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,731.70 : 961,023.15 = 534,755.70 : x
  2. Step 2: Convert to fraction form
    639,731.70/961,023.15 = 534,755.70/x
  3. Step 3: Cross multiply
    639,731.70x = 961,023.15 × 534,755.70
  4. Step 4: Simplify right side
    639,731.70x = 513,912,607,294.46
  5. Step 5: Solve for x
    x = 513,912,607,294.46/639,731.70
  6. Step 6: Final answer
    x = 803,325.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.