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Finding the Fourth Proportional to 555,195.20, 832,668.16 and 255,387.84

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Solution

The fourth proportional to 555,195.20, 832,668.16 and 255,387.84 is: 383,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,195.20 : 832,668.16 = 255,387.84 : x
  2. Step 2: Convert to fraction form
    555,195.20/832,668.16 = 255,387.84/x
  3. Step 3: Cross multiply
    555,195.20x = 832,668.16 × 255,387.84
  4. Step 4: Simplify right side
    555,195.20x = 212,653,322,819.17
  5. Step 5: Solve for x
    x = 212,653,322,819.17/555,195.20
  6. Step 6: Final answer
    x = 383,024.43

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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.