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Finding the Fourth Proportional to 664,848,060.80, 932,317,835.20 and 664,848,060.80

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Solution

The fourth proportional to 664,848,060.80, 932,317,835.20 and 664,848,060.80 is: 932,317,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,848,060.80 : 932,317,835.20 = 664,848,060.80 : x
  2. Step 2: Convert to fraction form
    664,848,060.80/932,317,835.20 = 664,848,060.80/x
  3. Step 3: Cross multiply
    664,848,060.80x = 932,317,835.20 × 664,848,060.80
  4. Step 4: Simplify right side
    664,848,060.80x = 619,849,704,781,974,016
  5. Step 5: Solve for x
    x = 619,849,704,781,974,016/664,848,060.80
  6. Step 6: Final answer
    x = 932,317,835.20

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.