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Finding the Fourth Proportional to 644,061.44, 888,930.88 and 411,338.88

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Solution

The fourth proportional to 644,061.44, 888,930.88 and 411,338.88 is: 567,728.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,061.44 : 888,930.88 = 411,338.88 : x
  2. Step 2: Convert to fraction form
    644,061.44/888,930.88 = 411,338.88/x
  3. Step 3: Cross multiply
    644,061.44x = 888,930.88 × 411,338.88
  4. Step 4: Simplify right side
    644,061.44x = 365,651,832,576.61
  5. Step 5: Solve for x
    x = 365,651,832,576.61/644,061.44
  6. Step 6: Final answer
    x = 567,728.19

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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.