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Finding the Fourth Proportional to 755,628.95, 1,042,753.03 and 411,469.10

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Solution

The fourth proportional to 755,628.95, 1,042,753.03 and 411,469.10 is: 567,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,628.95 : 1,042,753.03 = 411,469.10 : x
  2. Step 2: Convert to fraction form
    755,628.95/1,042,753.03 = 411,469.10/x
  3. Step 3: Cross multiply
    755,628.95x = 1,042,753.03 × 411,469.10
  4. Step 4: Simplify right side
    755,628.95x = 429,060,648,444.26
  5. Step 5: Solve for x
    x = 429,060,648,444.26/755,628.95
  6. Step 6: Final answer
    x = 567,819.23

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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.