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Finding the Fourth Proportional to 408,703.30, 564,001.68 and 236,628.52

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Solution

The fourth proportional to 408,703.30, 564,001.68 and 236,628.52 is: 326,542.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,703.30 : 564,001.68 = 236,628.52 : x
  2. Step 2: Convert to fraction form
    408,703.30/564,001.68 = 236,628.52/x
  3. Step 3: Cross multiply
    408,703.30x = 564,001.68 × 236,628.52
  4. Step 4: Simplify right side
    408,703.30x = 133,458,882,815.91
  5. Step 5: Solve for x
    x = 133,458,882,815.91/408,703.30
  6. Step 6: Final answer
    x = 326,542.22

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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.