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Finding the Fourth Proportional to 961,778.62, 1,327,268.46 and 553,953.70

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Solution

The fourth proportional to 961,778.62, 1,327,268.46 and 553,953.70 is: 764,464.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,778.62 : 1,327,268.46 = 553,953.70 : x
  2. Step 2: Convert to fraction form
    961,778.62/1,327,268.46 = 553,953.70/x
  3. Step 3: Cross multiply
    961,778.62x = 1,327,268.46 × 553,953.70
  4. Step 4: Simplify right side
    961,778.62x = 735,245,274,310.30
  5. Step 5: Solve for x
    x = 735,245,274,310.30/961,778.62
  6. Step 6: Final answer
    x = 764,464.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.