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Finding the Fourth Proportional to 555,319.26, 832,349.18 and 255,179.64

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Solution

The fourth proportional to 555,319.26, 832,349.18 and 255,179.64 is: 382,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,319.26 : 832,349.18 = 255,179.64 : x
  2. Step 2: Convert to fraction form
    555,319.26/832,349.18 = 255,179.64/x
  3. Step 3: Cross multiply
    555,319.26x = 832,349.18 × 255,179.64
  4. Step 4: Simplify right side
    555,319.26x = 212,398,564,106.70
  5. Step 5: Solve for x
    x = 212,398,564,106.70/555,319.26
  6. Step 6: Final answer
    x = 382,480.10

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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.