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Finding the Fourth Proportional to 313,061.46, 432,024.78 and 177,092.49

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Solution

The fourth proportional to 313,061.46, 432,024.78 and 177,092.49 is: 244,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,061.46 : 432,024.78 = 177,092.49 : x
  2. Step 2: Convert to fraction form
    313,061.46/432,024.78 = 177,092.49/x
  3. Step 3: Cross multiply
    313,061.46x = 432,024.78 × 177,092.49
  4. Step 4: Simplify right side
    313,061.46x = 76,508,344,031.90
  5. Step 5: Solve for x
    x = 76,508,344,031.90/313,061.46
  6. Step 6: Final answer
    x = 244,387.62

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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.