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Finding the Fourth Proportional to 639,957.48, 883,104.72 and 382,125.21

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Solution

The fourth proportional to 639,957.48, 883,104.72 and 382,125.21 is: 527,310.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,957.48 : 883,104.72 = 382,125.21 : x
  2. Step 2: Convert to fraction form
    639,957.48/883,104.72 = 382,125.21/x
  3. Step 3: Cross multiply
    639,957.48x = 883,104.72 × 382,125.21
  4. Step 4: Simplify right side
    639,957.48x = 337,456,576,581.99
  5. Step 5: Solve for x
    x = 337,456,576,581.99/639,957.48
  6. Step 6: Final answer
    x = 527,310.93

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1.5x scale

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.