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Finding the Fourth Proportional to 664,577.60, 996,866.40 and 617,338.40

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Solution

The fourth proportional to 664,577.60, 996,866.40 and 617,338.40 is: 926,007.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,577.60 : 996,866.40 = 617,338.40 : x
  2. Step 2: Convert to fraction form
    664,577.60/996,866.40 = 617,338.40/x
  3. Step 3: Cross multiply
    664,577.60x = 996,866.40 × 617,338.40
  4. Step 4: Simplify right side
    664,577.60x = 615,403,908,389.76
  5. Step 5: Solve for x
    x = 615,403,908,389.76/664,577.60
  6. Step 6: Final answer
    x = 926,007.60

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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.