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Finding the Fourth Proportional to 397,302.46, 595,940.49 and 172,663.11

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Solution

The fourth proportional to 397,302.46, 595,940.49 and 172,663.11 is: 258,988.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,302.46 : 595,940.49 = 172,663.11 : x
  2. Step 2: Convert to fraction form
    397,302.46/595,940.49 = 172,663.11/x
  3. Step 3: Cross multiply
    397,302.46x = 595,940.49 × 172,663.11
  4. Step 4: Simplify right side
    397,302.46x = 102,896,938,378.32
  5. Step 5: Solve for x
    x = 102,896,938,378.32/397,302.46
  6. Step 6: Final answer
    x = 258,988.93

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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.