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Finding the Fourth Proportional to 610,436.82, 915,359.76 and 210,937.44

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Solution

The fourth proportional to 610,436.82, 915,359.76 and 210,937.44 is: 316,304.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,436.82 : 915,359.76 = 210,937.44 : x
  2. Step 2: Convert to fraction form
    610,436.82/915,359.76 = 210,937.44/x
  3. Step 3: Cross multiply
    610,436.82x = 915,359.76 × 210,937.44
  4. Step 4: Simplify right side
    610,436.82x = 193,083,644,453.41
  5. Step 5: Solve for x
    x = 193,083,644,453.41/610,436.82
  6. Step 6: Final answer
    x = 316,304.06

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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.