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Finding the Fourth Proportional to 354,797.47, 532,280.94 and 118,142.20

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Solution

The fourth proportional to 354,797.47, 532,280.94 and 118,142.20 is: 177,241.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,797.47 : 532,280.94 = 118,142.20 : x
  2. Step 2: Convert to fraction form
    354,797.47/532,280.94 = 118,142.20/x
  3. Step 3: Cross multiply
    354,797.47x = 532,280.94 × 118,142.20
  4. Step 4: Simplify right side
    354,797.47x = 62,884,839,494.73
  5. Step 5: Solve for x
    x = 62,884,839,494.73/354,797.47
  6. Step 6: Final answer
    x = 177,241.51

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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.