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Finding the Fourth Proportional to 457,252.34, 631,008.11 and 253,316.50

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Solution

The fourth proportional to 457,252.34, 631,008.11 and 253,316.50 is: 349,576.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,252.34 : 631,008.11 = 253,316.50 : x
  2. Step 2: Convert to fraction form
    457,252.34/631,008.11 = 253,316.50/x
  3. Step 3: Cross multiply
    457,252.34x = 631,008.11 × 253,316.50
  4. Step 4: Simplify right side
    457,252.34x = 159,844,764,952.59
  5. Step 5: Solve for x
    x = 159,844,764,952.59/457,252.34
  6. Step 6: Final answer
    x = 349,576.71

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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.