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Finding the Fourth Proportional to 372,685.20, 514,300.44 and 202,919.32

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Solution

The fourth proportional to 372,685.20, 514,300.44 and 202,919.32 is: 280,025.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,685.20 : 514,300.44 = 202,919.32 : x
  2. Step 2: Convert to fraction form
    372,685.20/514,300.44 = 202,919.32/x
  3. Step 3: Cross multiply
    372,685.20x = 514,300.44 × 202,919.32
  4. Step 4: Simplify right side
    372,685.20x = 104,361,495,560.50
  5. Step 5: Solve for x
    x = 104,361,495,560.50/372,685.20
  6. Step 6: Final answer
    x = 280,025.87

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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.