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Finding the Fourth Proportional to 457,726.23, 631,699.43 and 253,797.39

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Solution

The fourth proportional to 457,726.23, 631,699.43 and 253,797.39 is: 350,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,726.23 : 631,699.43 = 253,797.39 : x
  2. Step 2: Convert to fraction form
    457,726.23/631,699.43 = 253,797.39/x
  3. Step 3: Cross multiply
    457,726.23x = 631,699.43 × 253,797.39
  4. Step 4: Simplify right side
    457,726.23x = 160,323,665,329.50
  5. Step 5: Solve for x
    x = 160,323,665,329.50/457,726.23
  6. Step 6: Final answer
    x = 350,261.04

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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.