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Finding the Fourth Proportional to 389,353.59, 584,049.53 and 189,844.52

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Solution

The fourth proportional to 389,353.59, 584,049.53 and 189,844.52 is: 284,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,353.59 : 584,049.53 = 189,844.52 : x
  2. Step 2: Convert to fraction form
    389,353.59/584,049.53 = 189,844.52/x
  3. Step 3: Cross multiply
    389,353.59x = 584,049.53 × 189,844.52
  4. Step 4: Simplify right side
    389,353.59x = 110,878,600,233.44
  5. Step 5: Solve for x
    x = 110,878,600,233.44/389,353.59
  6. Step 6: Final answer
    x = 284,776.11

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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.