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Finding the Fourth Proportional to 663,195.60, 994,793.40 and 623,829.60

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Solution

The fourth proportional to 663,195.60, 994,793.40 and 623,829.60 is: 935,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,195.60 : 994,793.40 = 623,829.60 : x
  2. Step 2: Convert to fraction form
    663,195.60/994,793.40 = 623,829.60/x
  3. Step 3: Cross multiply
    663,195.60x = 994,793.40 × 623,829.60
  4. Step 4: Simplify right side
    663,195.60x = 620,581,568,804.64
  5. Step 5: Solve for x
    x = 620,581,568,804.64/663,195.60
  6. Step 6: Final answer
    x = 935,744.40

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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.