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Finding the Fourth Proportional to 389,562.21, 584,605.74 and 152,876.97

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Solution

The fourth proportional to 389,562.21, 584,605.74 and 152,876.97 is: 229,418.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,562.21 : 584,605.74 = 152,876.97 : x
  2. Step 2: Convert to fraction form
    389,562.21/584,605.74 = 152,876.97/x
  3. Step 3: Cross multiply
    389,562.21x = 584,605.74 × 152,876.97
  4. Step 4: Simplify right side
    389,562.21x = 89,372,754,175.81
  5. Step 5: Solve for x
    x = 89,372,754,175.81/389,562.21
  6. Step 6: Final answer
    x = 229,418.44

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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.