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Finding the Fourth Proportional to 656,098.80, 984,148.20 and 356,722.80

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Solution

The fourth proportional to 656,098.80, 984,148.20 and 356,722.80 is: 535,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,098.80 : 984,148.20 = 356,722.80 : x
  2. Step 2: Convert to fraction form
    656,098.80/984,148.20 = 356,722.80/x
  3. Step 3: Cross multiply
    656,098.80x = 984,148.20 × 356,722.80
  4. Step 4: Simplify right side
    656,098.80x = 351,068,101,518.96
  5. Step 5: Solve for x
    x = 351,068,101,518.96/656,098.80
  6. Step 6: Final answer
    x = 535,084.20

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Double scale
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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.