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Finding the Fourth Proportional to 498,427,982.40, 747,641,973.60 and 498,427,982.40

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Solution

The fourth proportional to 498,427,982.40, 747,641,973.60 and 498,427,982.40 is: 747,641,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,427,982.40 : 747,641,973.60 = 498,427,982.40 : x
  2. Step 2: Convert to fraction form
    498,427,982.40/747,641,973.60 = 498,427,982.40/x
  3. Step 3: Cross multiply
    498,427,982.40x = 747,641,973.60 × 498,427,982.40
  4. Step 4: Simplify right side
    498,427,982.40x = 372,645,680,459,002,048
  5. Step 5: Solve for x
    x = 372,645,680,459,002,048/498,427,982.40
  6. Step 6: Final answer
    x = 747,641,973.60

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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.