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Finding the Fourth Proportional to 457,260.69, 631,058.51 and 253,375.57

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Solution

The fourth proportional to 457,260.69, 631,058.51 and 253,375.57 is: 349,679.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,260.69 : 631,058.51 = 253,375.57 : x
  2. Step 2: Convert to fraction form
    457,260.69/631,058.51 = 253,375.57/x
  3. Step 3: Cross multiply
    457,260.69x = 631,058.51 × 253,375.57
  4. Step 4: Simplify right side
    457,260.69x = 159,894,808,253.08
  5. Step 5: Solve for x
    x = 159,894,808,253.08/457,260.69
  6. Step 6: Final answer
    x = 349,679.76

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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.