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Finding the Fourth Proportional to 260,439.64, 359,367.42 and 158,412.76

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Solution

The fourth proportional to 260,439.64, 359,367.42 and 158,412.76 is: 218,585.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,439.64 : 359,367.42 = 158,412.76 : x
  2. Step 2: Convert to fraction form
    260,439.64/359,367.42 = 158,412.76/x
  3. Step 3: Cross multiply
    260,439.64x = 359,367.42 × 158,412.76
  4. Step 4: Simplify right side
    260,439.64x = 56,928,384,856.28
  5. Step 5: Solve for x
    x = 56,928,384,856.28/260,439.64
  6. Step 6: Final answer
    x = 218,585.71

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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.