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Finding the Fourth Proportional to 2,332.60, 3,498.96 and 772.60

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Solution

The fourth proportional to 2,332.60, 3,498.96 and 772.60 is: 1,158.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,332.60 : 3,498.96 = 772.60 : x
  2. Step 2: Convert to fraction form
    2,332.60/3,498.96 = 772.60/x
  3. Step 3: Cross multiply
    2,332.60x = 3,498.96 × 772.60
  4. Step 4: Simplify right side
    2,332.60x = 2,703,296.50
  5. Step 5: Solve for x
    x = 2,703,296.50/2,332.60
  6. Step 6: Final answer
    x = 1,158.92

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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.