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Finding the Fourth Proportional to 656,329.80, 984,494.70 and 157,693.80

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Solution

The fourth proportional to 656,329.80, 984,494.70 and 157,693.80 is: 236,540.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,329.80 : 984,494.70 = 157,693.80 : x
  2. Step 2: Convert to fraction form
    656,329.80/984,494.70 = 157,693.80/x
  3. Step 3: Cross multiply
    656,329.80x = 984,494.70 × 157,693.80
  4. Step 4: Simplify right side
    656,329.80x = 155,248,710,322.86
  5. Step 5: Solve for x
    x = 155,248,710,322.86/656,329.80
  6. Step 6: Final answer
    x = 236,540.70

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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.