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Finding the Fourth Proportional to 627,505.77, 865,963.40 and 341,025.92

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Solution

The fourth proportional to 627,505.77, 865,963.40 and 341,025.92 is: 470,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,505.77 : 865,963.40 = 341,025.92 : x
  2. Step 2: Convert to fraction form
    627,505.77/865,963.40 = 341,025.92/x
  3. Step 3: Cross multiply
    627,505.77x = 865,963.40 × 341,025.92
  4. Step 4: Simplify right side
    627,505.77x = 295,315,959,136.38
  5. Step 5: Solve for x
    x = 295,315,959,136.38/627,505.77
  6. Step 6: Final answer
    x = 470,618.72

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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.