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Finding the Fourth Proportional to 341,635.79, 471,515.08 and 198,478.88

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Solution

The fourth proportional to 341,635.79, 471,515.08 and 198,478.88 is: 273,934.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,635.79 : 471,515.08 = 198,478.88 : x
  2. Step 2: Convert to fraction form
    341,635.79/471,515.08 = 198,478.88/x
  3. Step 3: Cross multiply
    341,635.79x = 471,515.08 × 198,478.88
  4. Step 4: Simplify right side
    341,635.79x = 93,585,782,127.74
  5. Step 5: Solve for x
    x = 93,585,782,127.74/341,635.79
  6. Step 6: Final answer
    x = 273,934.36

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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.