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Finding the Fourth Proportional to 373,562, 515,515.56 and 239,426

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Solution

The fourth proportional to 373,562, 515,515.56 and 239,426 is: 330,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,562 : 515,515.56 = 239,426 : x
  2. Step 2: Convert to fraction form
    373,562/515,515.56 = 239,426/x
  3. Step 3: Cross multiply
    373,562x = 515,515.56 × 239,426
  4. Step 4: Simplify right side
    373,562x = 123,427,828,468.56
  5. Step 5: Solve for x
    x = 123,427,828,468.56/373,562
  6. Step 6: Final answer
    x = 330,407.88

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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.