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Finding the Fourth Proportional to 561,785.97, 843,308.65 and 225,061.35

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Solution

The fourth proportional to 561,785.97, 843,308.65 and 225,061.35 is: 337,844.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,785.97 : 843,308.65 = 225,061.35 : x
  2. Step 2: Convert to fraction form
    561,785.97/843,308.65 = 225,061.35/x
  3. Step 3: Cross multiply
    561,785.97x = 843,308.65 × 225,061.35
  4. Step 4: Simplify right side
    561,785.97x = 189,796,184,446.15
  5. Step 5: Solve for x
    x = 189,796,184,446.15/561,785.97
  6. Step 6: Final answer
    x = 337,844.30

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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.