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Finding the Fourth Proportional to 664,253.60, 996,380.40 and 608,266.40

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Solution

The fourth proportional to 664,253.60, 996,380.40 and 608,266.40 is: 912,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,253.60 : 996,380.40 = 608,266.40 : x
  2. Step 2: Convert to fraction form
    664,253.60/996,380.40 = 608,266.40/x
  3. Step 3: Cross multiply
    664,253.60x = 996,380.40 × 608,266.40
  4. Step 4: Simplify right side
    664,253.60x = 606,064,718,938.56
  5. Step 5: Solve for x
    x = 606,064,718,938.56/664,253.60
  6. Step 6: Final answer
    x = 912,399.60

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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.