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Finding the Fourth Proportional to 627,253.81, 865,614.40 and 340,773.82

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Solution

The fourth proportional to 627,253.81, 865,614.40 and 340,773.82 is: 470,270.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,253.81 : 865,614.40 = 340,773.82 : x
  2. Step 2: Convert to fraction form
    627,253.81/865,614.40 = 340,773.82/x
  3. Step 3: Cross multiply
    627,253.81x = 865,614.40 × 340,773.82
  4. Step 4: Simplify right side
    627,253.81x = 294,978,722,719.04
  5. Step 5: Solve for x
    x = 294,978,722,719.04/627,253.81
  6. Step 6: Final answer
    x = 470,270.12

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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.