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Finding the Fourth Proportional to 392,363.50, 541,626.16 and 265,211.32

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Solution

The fourth proportional to 392,363.50, 541,626.16 and 265,211.32 is: 366,102.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,363.50 : 541,626.16 = 265,211.32 : x
  2. Step 2: Convert to fraction form
    392,363.50/541,626.16 = 265,211.32/x
  3. Step 3: Cross multiply
    392,363.50x = 541,626.16 × 265,211.32
  4. Step 4: Simplify right side
    392,363.50x = 143,645,388,840.13
  5. Step 5: Solve for x
    x = 143,645,388,840.13/392,363.50
  6. Step 6: Final answer
    x = 366,102.83

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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.