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Finding the Fourth Proportional to 389,560.50, 584,444.43 and 123,326.46

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Solution

The fourth proportional to 389,560.50, 584,444.43 and 123,326.46 is: 185,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,560.50 : 584,444.43 = 123,326.46 : x
  2. Step 2: Convert to fraction form
    389,560.50/584,444.43 = 123,326.46/x
  3. Step 3: Cross multiply
    389,560.50x = 584,444.43 × 123,326.46
  4. Step 4: Simplify right side
    389,560.50x = 72,077,462,618.62
  5. Step 5: Solve for x
    x = 72,077,462,618.62/389,560.50
  6. Step 6: Final answer
    x = 185,022.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.