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Finding the Fourth Proportional to 484,015.20, 726,022.80 and 465,644.40

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Solution

The fourth proportional to 484,015.20, 726,022.80 and 465,644.40 is: 698,466.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,015.20 : 726,022.80 = 465,644.40 : x
  2. Step 2: Convert to fraction form
    484,015.20/726,022.80 = 465,644.40/x
  3. Step 3: Cross multiply
    484,015.20x = 726,022.80 × 465,644.40
  4. Step 4: Simplify right side
    484,015.20x = 338,068,451,092.32
  5. Step 5: Solve for x
    x = 338,068,451,092.32/484,015.20
  6. Step 6: Final answer
    x = 698,466.60

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Similar ratio
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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.