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Finding the Fourth Proportional to 664,281,575.70, 996,422,363.55 and 664,281,575.70

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Solution

The fourth proportional to 664,281,575.70, 996,422,363.55 and 664,281,575.70 is: 996,422,363.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,281,575.70 : 996,422,363.55 = 664,281,575.70 : x
  2. Step 2: Convert to fraction form
    664,281,575.70/996,422,363.55 = 664,281,575.70/x
  3. Step 3: Cross multiply
    664,281,575.70x = 996,422,363.55 × 664,281,575.70
  4. Step 4: Simplify right side
    664,281,575.70x = 661,905,017,721,712,256
  5. Step 5: Solve for x
    x = 661,905,017,721,712,256/664,281,575.70
  6. Step 6: Final answer
    x = 996,422,363.55

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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.