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Finding the Fourth Proportional to 467,781.68, 645,538.31 and 252,921.23

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Solution

The fourth proportional to 467,781.68, 645,538.31 and 252,921.23 is: 349,031.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,781.68 : 645,538.31 = 252,921.23 : x
  2. Step 2: Convert to fraction form
    467,781.68/645,538.31 = 252,921.23/x
  3. Step 3: Cross multiply
    467,781.68x = 645,538.31 × 252,921.23
  4. Step 4: Simplify right side
    467,781.68x = 163,270,345,885.40
  5. Step 5: Solve for x
    x = 163,270,345,885.40/467,781.68
  6. Step 6: Final answer
    x = 349,031.08

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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.