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Finding the Fourth Proportional to 457,558.34, 631,468.28 and 253,673.21

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Solution

The fourth proportional to 457,558.34, 631,468.28 and 253,673.21 is: 350,089.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,558.34 : 631,468.28 = 253,673.21 : x
  2. Step 2: Convert to fraction form
    457,558.34/631,468.28 = 253,673.21/x
  3. Step 3: Cross multiply
    457,558.34x = 631,468.28 × 253,673.21
  4. Step 4: Simplify right side
    457,558.34x = 160,186,583,077.62
  5. Step 5: Solve for x
    x = 160,186,583,077.62/457,558.34
  6. Step 6: Final answer
    x = 350,089.97

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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.