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Finding the Fourth Proportional to 664,447.60, 996,671.40 and 608,460.40

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Solution

The fourth proportional to 664,447.60, 996,671.40 and 608,460.40 is: 912,690.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,447.60 : 996,671.40 = 608,460.40 : x
  2. Step 2: Convert to fraction form
    664,447.60/996,671.40 = 608,460.40/x
  3. Step 3: Cross multiply
    664,447.60x = 996,671.40 × 608,460.40
  4. Step 4: Simplify right side
    664,447.60x = 606,435,078,712.56
  5. Step 5: Solve for x
    x = 606,435,078,712.56/664,447.60
  6. Step 6: Final answer
    x = 912,690.60

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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.