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Finding the Fourth Proportional to 418,871.12, 577,943.88 and 237,543.44

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Solution

The fourth proportional to 418,871.12, 577,943.88 and 237,543.44 is: 327,754.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,871.12 : 577,943.88 = 237,543.44 : x
  2. Step 2: Convert to fraction form
    418,871.12/577,943.88 = 237,543.44/x
  3. Step 3: Cross multiply
    418,871.12x = 577,943.88 × 237,543.44
  4. Step 4: Simplify right side
    418,871.12x = 137,286,777,382.15
  5. Step 5: Solve for x
    x = 137,286,777,382.15/418,871.12
  6. Step 6: Final answer
    x = 327,754.22

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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.