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Finding the Fourth Proportional to 341,842.80, 512,764.20 and 247,364.40

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Solution

The fourth proportional to 341,842.80, 512,764.20 and 247,364.40 is: 371,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,842.80 : 512,764.20 = 247,364.40 : x
  2. Step 2: Convert to fraction form
    341,842.80/512,764.20 = 247,364.40/x
  3. Step 3: Cross multiply
    341,842.80x = 512,764.20 × 247,364.40
  4. Step 4: Simplify right side
    341,842.80x = 126,839,608,674.48
  5. Step 5: Solve for x
    x = 126,839,608,674.48/341,842.80
  6. Step 6: Final answer
    x = 371,046.60

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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.