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Finding the Fourth Proportional to 676,049.90, 932,949.06 and 374,243.90

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Solution

The fourth proportional to 676,049.90, 932,949.06 and 374,243.90 is: 516,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,049.90 : 932,949.06 = 374,243.90 : x
  2. Step 2: Convert to fraction form
    676,049.90/932,949.06 = 374,243.90/x
  3. Step 3: Cross multiply
    676,049.90x = 932,949.06 × 374,243.90
  4. Step 4: Simplify right side
    676,049.90x = 349,150,494,715.73
  5. Step 5: Solve for x
    x = 349,150,494,715.73/676,049.90
  6. Step 6: Final answer
    x = 516,456.69

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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.