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Finding the Fourth Proportional to 355,449.60, 532,483.20 and 197,395.20

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Solution

The fourth proportional to 355,449.60, 532,483.20 and 197,395.20 is: 295,708.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,449.60 : 532,483.20 = 197,395.20 : x
  2. Step 2: Convert to fraction form
    355,449.60/532,483.20 = 197,395.20/x
  3. Step 3: Cross multiply
    355,449.60x = 532,483.20 × 197,395.20
  4. Step 4: Simplify right side
    355,449.60x = 105,109,627,760.64
  5. Step 5: Solve for x
    x = 105,109,627,760.64/355,449.60
  6. Step 6: Final answer
    x = 295,708.95

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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.