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Finding the Fourth Proportional to 341,943.60, 511,993.80 and 247,940.40

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Solution

The fourth proportional to 341,943.60, 511,993.80 and 247,940.40 is: 371,242.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,943.60 : 511,993.80 = 247,940.40 : x
  2. Step 2: Convert to fraction form
    341,943.60/511,993.80 = 247,940.40/x
  3. Step 3: Cross multiply
    341,943.60x = 511,993.80 × 247,940.40
  4. Step 4: Simplify right side
    341,943.60x = 126,943,947,569.52
  5. Step 5: Solve for x
    x = 126,943,947,569.52/341,943.60
  6. Step 6: Final answer
    x = 371,242.36

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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.