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Finding the Fourth Proportional to 354,913.60, 532,759.20 and 197,449.60

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Solution

The fourth proportional to 354,913.60, 532,759.20 and 197,449.60 is: 296,390.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,913.60 : 532,759.20 = 197,449.60 : x
  2. Step 2: Convert to fraction form
    354,913.60/532,759.20 = 197,449.60/x
  3. Step 3: Cross multiply
    354,913.60x = 532,759.20 × 197,449.60
  4. Step 4: Simplify right side
    354,913.60x = 105,193,090,936.32
  5. Step 5: Solve for x
    x = 105,193,090,936.32/354,913.60
  6. Step 6: Final answer
    x = 296,390.70

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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.