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Finding the Fourth Proportional to 627,505.38, 865,964.10 and 341,025.46

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Solution

The fourth proportional to 627,505.38, 865,964.10 and 341,025.46 is: 470,618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,505.38 : 865,964.10 = 341,025.46 : x
  2. Step 2: Convert to fraction form
    627,505.38/865,964.10 = 341,025.46/x
  3. Step 3: Cross multiply
    627,505.38x = 865,964.10 × 341,025.46
  4. Step 4: Simplify right side
    627,505.38x = 295,315,805,545.99
  5. Step 5: Solve for x
    x = 295,315,805,545.99/627,505.38
  6. Step 6: Final answer
    x = 470,618.76

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1.5x scale

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.