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Finding the Fourth Proportional to 356,646.28, 534,376.50 and 251,242.60

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Solution

The fourth proportional to 356,646.28, 534,376.50 and 251,242.60 is: 376,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,646.28 : 534,376.50 = 251,242.60 : x
  2. Step 2: Convert to fraction form
    356,646.28/534,376.50 = 251,242.60/x
  3. Step 3: Cross multiply
    356,646.28x = 534,376.50 × 251,242.60
  4. Step 4: Simplify right side
    356,646.28x = 134,258,141,238.90
  5. Step 5: Solve for x
    x = 134,258,141,238.90/356,646.28
  6. Step 6: Final answer
    x = 376,446.21

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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.