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Finding the Fourth Proportional to 389,806.31, 584,709.48 and 94,318.31

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Solution

The fourth proportional to 389,806.31, 584,709.48 and 94,318.31 is: 141,477.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,806.31 : 584,709.48 = 94,318.31 : x
  2. Step 2: Convert to fraction form
    389,806.31/584,709.48 = 94,318.31/x
  3. Step 3: Cross multiply
    389,806.31x = 584,709.48 × 94,318.31
  4. Step 4: Simplify right side
    389,806.31x = 55,148,811,456.35
  5. Step 5: Solve for x
    x = 55,148,811,456.35/389,806.31
  6. Step 6: Final answer
    x = 141,477.47

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Similar ratio
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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.