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Finding the Fourth Proportional to 363,937.43, 502,271.02 and 218,790.20

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Solution

The fourth proportional to 363,937.43, 502,271.02 and 218,790.20 is: 301,952.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,937.43 : 502,271.02 = 218,790.20 : x
  2. Step 2: Convert to fraction form
    363,937.43/502,271.02 = 218,790.20/x
  3. Step 3: Cross multiply
    363,937.43x = 502,271.02 × 218,790.20
  4. Step 4: Simplify right side
    363,937.43x = 109,891,975,669.38
  5. Step 5: Solve for x
    x = 109,891,975,669.38/363,937.43
  6. Step 6: Final answer
    x = 301,952.94

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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.