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Finding the Fourth Proportional to 356,532.28, 534,205.48 and 251,128.60

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Solution

The fourth proportional to 356,532.28, 534,205.48 and 251,128.60 is: 376,275.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,532.28 : 534,205.48 = 251,128.60 : x
  2. Step 2: Convert to fraction form
    356,532.28/534,205.48 = 251,128.60/x
  3. Step 3: Cross multiply
    356,532.28x = 534,205.48 × 251,128.60
  4. Step 4: Simplify right side
    356,532.28x = 134,154,274,304.73
  5. Step 5: Solve for x
    x = 134,154,274,304.73/356,532.28
  6. Step 6: Final answer
    x = 376,275.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.