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Finding the Fourth Proportional to 454,411.71, 627,085.35 and 247,679.86

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Solution

The fourth proportional to 454,411.71, 627,085.35 and 247,679.86 is: 341,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,411.71 : 627,085.35 = 247,679.86 : x
  2. Step 2: Convert to fraction form
    454,411.71/627,085.35 = 247,679.86/x
  3. Step 3: Cross multiply
    454,411.71x = 627,085.35 × 247,679.86
  4. Step 4: Simplify right side
    454,411.71x = 155,316,411,696.05
  5. Step 5: Solve for x
    x = 155,316,411,696.05/454,411.71
  6. Step 6: Final answer
    x = 341,796.68

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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.