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Finding the Fourth Proportional to 555,189.14, 832,659.18 and 255,381.80

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Solution

The fourth proportional to 555,189.14, 832,659.18 and 255,381.80 is: 383,015.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,189.14 : 832,659.18 = 255,381.80 : x
  2. Step 2: Convert to fraction form
    555,189.14/832,659.18 = 255,381.80/x
  3. Step 3: Cross multiply
    555,189.14x = 832,659.18 × 255,381.80
  4. Step 4: Simplify right side
    555,189.14x = 212,646,000,174.92
  5. Step 5: Solve for x
    x = 212,646,000,174.92/555,189.14
  6. Step 6: Final answer
    x = 383,015.42

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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.