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Finding the Fourth Proportional to 457,252.21, 631,007.94 and 253,316.38

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Solution

The fourth proportional to 457,252.21, 631,007.94 and 253,316.38 is: 349,576.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,252.21 : 631,007.94 = 253,316.38 : x
  2. Step 2: Convert to fraction form
    457,252.21/631,007.94 = 253,316.38/x
  3. Step 3: Cross multiply
    457,252.21x = 631,007.94 × 253,316.38
  4. Step 4: Simplify right side
    457,252.21x = 159,844,643,957.02
  5. Step 5: Solve for x
    x = 159,844,643,957.02/457,252.21
  6. Step 6: Final answer
    x = 349,576.54

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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.