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Finding the Fourth Proportional to 399,063.81, 598,805.90 and 230,702.37

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Solution

The fourth proportional to 399,063.81, 598,805.90 and 230,702.37 is: 346,175.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,063.81 : 598,805.90 = 230,702.37 : x
  2. Step 2: Convert to fraction form
    399,063.81/598,805.90 = 230,702.37/x
  3. Step 3: Cross multiply
    399,063.81x = 598,805.90 × 230,702.37
  4. Step 4: Simplify right side
    399,063.81x = 138,145,940,876.74
  5. Step 5: Solve for x
    x = 138,145,940,876.74/399,063.81
  6. Step 6: Final answer
    x = 346,175.07

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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.