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Finding the Fourth Proportional to 662,691.68, 994,330.16 and 514,221.92

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Solution

The fourth proportional to 662,691.68, 994,330.16 and 514,221.92 is: 771,559.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,691.68 : 994,330.16 = 514,221.92 : x
  2. Step 2: Convert to fraction form
    662,691.68/994,330.16 = 514,221.92/x
  3. Step 3: Cross multiply
    662,691.68x = 994,330.16 × 514,221.92
  4. Step 4: Simplify right side
    662,691.68x = 511,306,363,989.11
  5. Step 5: Solve for x
    x = 511,306,363,989.11/662,691.68
  6. Step 6: Final answer
    x = 771,559.96

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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.