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Finding the Fourth Proportional to 457,433.63, 631,262.15 and 253,487.96

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Solution

The fourth proportional to 457,433.63, 631,262.15 and 253,487.96 is: 349,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,433.63 : 631,262.15 = 253,487.96 : x
  2. Step 2: Convert to fraction form
    457,433.63/631,262.15 = 253,487.96/x
  3. Step 3: Cross multiply
    457,433.63x = 631,262.15 × 253,487.96
  4. Step 4: Simplify right side
    457,433.63x = 160,017,356,840.59
  5. Step 5: Solve for x
    x = 160,017,356,840.59/457,433.63
  6. Step 6: Final answer
    x = 349,815.46

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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.