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Finding the Fourth Proportional to 616,417.68, 924,700.20 and 261,385.56

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Solution

The fourth proportional to 616,417.68, 924,700.20 and 261,385.56 is: 392,109.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,417.68 : 924,700.20 = 261,385.56 : x
  2. Step 2: Convert to fraction form
    616,417.68/924,700.20 = 261,385.56/x
  3. Step 3: Cross multiply
    616,417.68x = 924,700.20 × 261,385.56
  4. Step 4: Simplify right side
    616,417.68x = 241,703,279,609.11
  5. Step 5: Solve for x
    x = 241,703,279,609.11/616,417.68
  6. Step 6: Final answer
    x = 392,109.58

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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.