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Finding the Fourth Proportional to 555,418.62, 832,498.02 and 255,279.06

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Solution

The fourth proportional to 555,418.62, 832,498.02 and 255,279.06 is: 382,629.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,418.62 : 832,498.02 = 255,279.06 : x
  2. Step 2: Convert to fraction form
    555,418.62/832,498.02 = 255,279.06/x
  3. Step 3: Cross multiply
    555,418.62x = 832,498.02 × 255,279.06
  4. Step 4: Simplify right side
    555,418.62x = 212,519,311,997.46
  5. Step 5: Solve for x
    x = 212,519,311,997.46/555,418.62
  6. Step 6: Final answer
    x = 382,629.07

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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.