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Finding the Fourth Proportional to 399,181.04, 550,856.04 and 237,953

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Solution

The fourth proportional to 399,181.04, 550,856.04 and 237,953 is: 328,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,181.04 : 550,856.04 = 237,953 : x
  2. Step 2: Convert to fraction form
    399,181.04/550,856.04 = 237,953/x
  3. Step 3: Cross multiply
    399,181.04x = 550,856.04 × 237,953
  4. Step 4: Simplify right side
    399,181.04x = 131,077,847,286.12
  5. Step 5: Solve for x
    x = 131,077,847,286.12/399,181.04
  6. Step 6: Final answer
    x = 328,366.92

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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.