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Finding the Fourth Proportional to 372,640.52, 514,077.78 and 251,742.92

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Solution

The fourth proportional to 372,640.52, 514,077.78 and 251,742.92 is: 347,292.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,640.52 : 514,077.78 = 251,742.92 : x
  2. Step 2: Convert to fraction form
    372,640.52/514,077.78 = 251,742.92/x
  3. Step 3: Cross multiply
    372,640.52x = 514,077.78 × 251,742.92
  4. Step 4: Simplify right side
    372,640.52x = 129,415,441,444.32
  5. Step 5: Solve for x
    x = 129,415,441,444.32/372,640.52
  6. Step 6: Final answer
    x = 347,292.99

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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.