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Finding the Fourth Proportional to 460,643.92, 635,662.38 and 253,871.28

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Solution

The fourth proportional to 460,643.92, 635,662.38 and 253,871.28 is: 350,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,643.92 : 635,662.38 = 253,871.28 : x
  2. Step 2: Convert to fraction form
    460,643.92/635,662.38 = 253,871.28/x
  3. Step 3: Cross multiply
    460,643.92x = 635,662.38 × 253,871.28
  4. Step 4: Simplify right side
    460,643.92x = 161,376,422,058.45
  5. Step 5: Solve for x
    x = 161,376,422,058.45/460,643.92
  6. Step 6: Final answer
    x = 350,327.91

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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.