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Finding the Fourth Proportional to 484,517.40, 726,905.70 and 344,549.40

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Solution

The fourth proportional to 484,517.40, 726,905.70 and 344,549.40 is: 516,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,517.40 : 726,905.70 = 344,549.40 : x
  2. Step 2: Convert to fraction form
    484,517.40/726,905.70 = 344,549.40/x
  3. Step 3: Cross multiply
    484,517.40x = 726,905.70 × 344,549.40
  4. Step 4: Simplify right side
    484,517.40x = 250,454,922,791.58
  5. Step 5: Solve for x
    x = 250,454,922,791.58/484,517.40
  6. Step 6: Final answer
    x = 516,916.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.