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Finding the Fourth Proportional to 385,744.80, 532,054.80 and 331,937.04

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Solution

The fourth proportional to 385,744.80, 532,054.80 and 331,937.04 is: 457,838.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,744.80 : 532,054.80 = 331,937.04 : x
  2. Step 2: Convert to fraction form
    385,744.80/532,054.80 = 331,937.04/x
  3. Step 3: Cross multiply
    385,744.80x = 532,054.80 × 331,937.04
  4. Step 4: Simplify right side
    385,744.80x = 176,608,695,429.79
  5. Step 5: Solve for x
    x = 176,608,695,429.79/385,744.80
  6. Step 6: Final answer
    x = 457,838.18

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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.