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Finding the Fourth Proportional to 374,959.28, 517,442.44 and 202,876.72

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Solution

The fourth proportional to 374,959.28, 517,442.44 and 202,876.72 is: 279,969.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,959.28 : 517,442.44 = 202,876.72 : x
  2. Step 2: Convert to fraction form
    374,959.28/517,442.44 = 202,876.72/x
  3. Step 3: Cross multiply
    374,959.28x = 517,442.44 × 202,876.72
  4. Step 4: Simplify right side
    374,959.28x = 104,977,025,016.00
  5. Step 5: Solve for x
    x = 104,977,025,016.00/374,959.28
  6. Step 6: Final answer
    x = 279,969.13

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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.