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Finding the Fourth Proportional to 656,385.60, 984,578.40 and 157,749.60

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Solution

The fourth proportional to 656,385.60, 984,578.40 and 157,749.60 is: 236,624.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,385.60 : 984,578.40 = 157,749.60 : x
  2. Step 2: Convert to fraction form
    656,385.60/984,578.40 = 157,749.60/x
  3. Step 3: Cross multiply
    656,385.60x = 984,578.40 × 157,749.60
  4. Step 4: Simplify right side
    656,385.60x = 155,316,848,768.64
  5. Step 5: Solve for x
    x = 155,316,848,768.64/656,385.60
  6. Step 6: Final answer
    x = 236,624.40

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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.