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Finding the Fourth Proportional to 656,346.80, 984,520.22 and 157,710.80

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Solution

The fourth proportional to 656,346.80, 984,520.22 and 157,710.80 is: 236,566.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,346.80 : 984,520.22 = 157,710.80 : x
  2. Step 2: Convert to fraction form
    656,346.80/984,520.22 = 157,710.80/x
  3. Step 3: Cross multiply
    656,346.80x = 984,520.22 × 157,710.80
  4. Step 4: Simplify right side
    656,346.80x = 155,269,468,534.32
  5. Step 5: Solve for x
    x = 155,269,468,534.32/656,346.80
  6. Step 6: Final answer
    x = 236,566.20

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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.