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Finding the Fourth Proportional to 656,383.20, 984,574.80 and 157,747.20

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Solution

The fourth proportional to 656,383.20, 984,574.80 and 157,747.20 is: 236,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,383.20 : 984,574.80 = 157,747.20 : x
  2. Step 2: Convert to fraction form
    656,383.20/984,574.80 = 157,747.20/x
  3. Step 3: Cross multiply
    656,383.20x = 984,574.80 × 157,747.20
  4. Step 4: Simplify right side
    656,383.20x = 155,313,917,890.56
  5. Step 5: Solve for x
    x = 155,313,917,890.56/656,383.20
  6. Step 6: Final answer
    x = 236,620.80

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Half scale
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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.