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Finding the Fourth Proportional to 502,117.43, 753,286.86 and 165,144.47

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Solution

The fourth proportional to 502,117.43, 753,286.86 and 165,144.47 is: 247,753.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,117.43 : 753,286.86 = 165,144.47 : x
  2. Step 2: Convert to fraction form
    502,117.43/753,286.86 = 165,144.47/x
  3. Step 3: Cross multiply
    502,117.43x = 753,286.86 × 165,144.47
  4. Step 4: Simplify right side
    502,117.43x = 124,401,155,486.23
  5. Step 5: Solve for x
    x = 124,401,155,486.23/502,117.43
  6. Step 6: Final answer
    x = 247,753.11

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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.