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Finding the Fourth Proportional to 483,947.60, 725,921.40 and 483,947.60

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Solution

The fourth proportional to 483,947.60, 725,921.40 and 483,947.60 is: 725,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,947.60 : 725,921.40 = 483,947.60 : x
  2. Step 2: Convert to fraction form
    483,947.60/725,921.40 = 483,947.60/x
  3. Step 3: Cross multiply
    483,947.60x = 725,921.40 × 483,947.60
  4. Step 4: Simplify right side
    483,947.60x = 351,307,919,318.64
  5. Step 5: Solve for x
    x = 351,307,919,318.64/483,947.60
  6. Step 6: Final answer
    x = 725,921.40

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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.