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Finding the Fourth Proportional to 712,007.60, 994,944.40 and 712,007.60

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Solution

The fourth proportional to 712,007.60, 994,944.40 and 712,007.60 is: 994,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,007.60 : 994,944.40 = 712,007.60 : x
  2. Step 2: Convert to fraction form
    712,007.60/994,944.40 = 712,007.60/x
  3. Step 3: Cross multiply
    712,007.60x = 994,944.40 × 712,007.60
  4. Step 4: Simplify right side
    712,007.60x = 708,407,974,377.44
  5. Step 5: Solve for x
    x = 708,407,974,377.44/712,007.60
  6. Step 6: Final answer
    x = 994,944.40

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