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Finding the Fourth Proportional to 656,446.60, 984,669.90 and 551,470.60

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Solution

The fourth proportional to 656,446.60, 984,669.90 and 551,470.60 is: 827,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,446.60 : 984,669.90 = 551,470.60 : x
  2. Step 2: Convert to fraction form
    656,446.60/984,669.90 = 551,470.60/x
  3. Step 3: Cross multiply
    656,446.60x = 984,669.90 × 551,470.60
  4. Step 4: Simplify right side
    656,446.60x = 543,016,500,554.94
  5. Step 5: Solve for x
    x = 543,016,500,554.94/656,446.60
  6. Step 6: Final answer
    x = 827,205.90

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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.