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Finding the Fourth Proportional to 373,953.75, 515,794.29 and 253,041.81

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Solution

The fourth proportional to 373,953.75, 515,794.29 and 253,041.81 is: 349,020.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,953.75 : 515,794.29 = 253,041.81 : x
  2. Step 2: Convert to fraction form
    373,953.75/515,794.29 = 253,041.81/x
  3. Step 3: Cross multiply
    373,953.75x = 515,794.29 × 253,041.81
  4. Step 4: Simplify right side
    373,953.75x = 130,517,520,729.27
  5. Step 5: Solve for x
    x = 130,517,520,729.27/373,953.75
  6. Step 6: Final answer
    x = 349,020.49

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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.