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Finding the Fourth Proportional to 338,592, 467,273.16 and 187,689

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Solution

The fourth proportional to 338,592, 467,273.16 and 187,689 is: 259,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,592 : 467,273.16 = 187,689 : x
  2. Step 2: Convert to fraction form
    338,592/467,273.16 = 187,689/x
  3. Step 3: Cross multiply
    338,592x = 467,273.16 × 187,689
  4. Step 4: Simplify right side
    338,592x = 87,702,032,127.24
  5. Step 5: Solve for x
    x = 87,702,032,127.24/338,592
  6. Step 6: Final answer
    x = 259,019.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.