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Finding the Fourth Proportional to 457,252.77, 631,008.72 and 253,316.94

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Solution

The fourth proportional to 457,252.77, 631,008.72 and 253,316.94 is: 349,577.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,252.77 : 631,008.72 = 253,316.94 : x
  2. Step 2: Convert to fraction form
    457,252.77/631,008.72 = 253,316.94/x
  3. Step 3: Cross multiply
    457,252.77x = 631,008.72 × 253,316.94
  4. Step 4: Simplify right side
    457,252.77x = 159,845,198,063.72
  5. Step 5: Solve for x
    x = 159,845,198,063.72/457,252.77
  6. Step 6: Final answer
    x = 349,577.32

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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.