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Finding the Fourth Proportional to 355,175.20, 532,179.60 and 295,688.80

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Solution

The fourth proportional to 355,175.20, 532,179.60 and 295,688.80 is: 443,047.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,175.20 : 532,179.60 = 295,688.80 : x
  2. Step 2: Convert to fraction form
    355,175.20/532,179.60 = 295,688.80/x
  3. Step 3: Cross multiply
    355,175.20x = 532,179.60 × 295,688.80
  4. Step 4: Simplify right side
    355,175.20x = 157,359,547,308.48
  5. Step 5: Solve for x
    x = 157,359,547,308.48/355,175.20
  6. Step 6: Final answer
    x = 443,047.68

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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.