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Finding the Fourth Proportional to 438,959.50, 605,813.29 and 247,985.19

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Solution

The fourth proportional to 438,959.50, 605,813.29 and 247,985.19 is: 342,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,959.50 : 605,813.29 = 247,985.19 : x
  2. Step 2: Convert to fraction form
    438,959.50/605,813.29 = 247,985.19/x
  3. Step 3: Cross multiply
    438,959.50x = 605,813.29 × 247,985.19
  4. Step 4: Simplify right side
    438,959.50x = 150,232,723,825.18
  5. Step 5: Solve for x
    x = 150,232,723,825.18/438,959.50
  6. Step 6: Final answer
    x = 342,247.35

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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.