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Finding the Fourth Proportional to 659,398.39, 988,959.19 and 185,973.03

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Solution

The fourth proportional to 659,398.39, 988,959.19 and 185,973.03 is: 278,920.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,398.39 : 988,959.19 = 185,973.03 : x
  2. Step 2: Convert to fraction form
    659,398.39/988,959.19 = 185,973.03/x
  3. Step 3: Cross multiply
    659,398.39x = 988,959.19 × 185,973.03
  4. Step 4: Simplify right side
    659,398.39x = 183,919,740,813.94
  5. Step 5: Solve for x
    x = 183,919,740,813.94/659,398.39
  6. Step 6: Final answer
    x = 278,920.52

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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.