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Finding the Fourth Proportional to 454,407.55, 627,129.08 and 273,178.15

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Solution

The fourth proportional to 454,407.55, 627,129.08 and 273,178.15 is: 377,013.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,407.55 : 627,129.08 = 273,178.15 : x
  2. Step 2: Convert to fraction form
    454,407.55/627,129.08 = 273,178.15/x
  3. Step 3: Cross multiply
    454,407.55x = 627,129.08 × 273,178.15
  4. Step 4: Simplify right side
    454,407.55x = 171,317,960,519.71
  5. Step 5: Solve for x
    x = 171,317,960,519.71/454,407.55
  6. Step 6: Final answer
    x = 377,013.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.