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Finding the Fourth Proportional to 457,818.66, 631,793.30 and 253,857.66

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Solution

The fourth proportional to 457,818.66, 631,793.30 and 253,857.66 is: 350,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,818.66 : 631,793.30 = 253,857.66 : x
  2. Step 2: Convert to fraction form
    457,818.66/631,793.30 = 253,857.66/x
  3. Step 3: Cross multiply
    457,818.66x = 631,793.30 × 253,857.66
  4. Step 4: Simplify right side
    457,818.66x = 160,385,567,472.39
  5. Step 5: Solve for x
    x = 160,385,567,472.39/457,818.66
  6. Step 6: Final answer
    x = 350,325.54

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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.