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Finding the Fourth Proportional to 338,693, 467,412.54 and 187,790

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Solution

The fourth proportional to 338,693, 467,412.54 and 187,790 is: 259,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,693 : 467,412.54 = 187,790 : x
  2. Step 2: Convert to fraction form
    338,693/467,412.54 = 187,790/x
  3. Step 3: Cross multiply
    338,693x = 467,412.54 × 187,790
  4. Step 4: Simplify right side
    338,693x = 87,775,400,886.60
  5. Step 5: Solve for x
    x = 87,775,400,886.60/338,693
  6. Step 6: Final answer
    x = 259,159.18

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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.