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Finding the Fourth Proportional to 664,350.80, 927,991.60 and 664,350.80

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Solution

The fourth proportional to 664,350.80, 927,991.60 and 664,350.80 is: 927,991.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,350.80 : 927,991.60 = 664,350.80 : x
  2. Step 2: Convert to fraction form
    664,350.80/927,991.60 = 664,350.80/x
  3. Step 3: Cross multiply
    664,350.80x = 927,991.60 × 664,350.80
  4. Step 4: Simplify right side
    664,350.80x = 616,511,961,853.28
  5. Step 5: Solve for x
    x = 616,511,961,853.28/664,350.80
  6. Step 6: Final answer
    x = 927,991.60

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Double scale
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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.