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Finding the Fourth Proportional to 526,994.97, 790,494.32 and 127,636.01

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Solution

The fourth proportional to 526,994.97, 790,494.32 and 127,636.01 is: 191,454.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,994.97 : 790,494.32 = 127,636.01 : x
  2. Step 2: Convert to fraction form
    526,994.97/790,494.32 = 127,636.01/x
  3. Step 3: Cross multiply
    526,994.97x = 790,494.32 × 127,636.01
  4. Step 4: Simplify right side
    526,994.97x = 100,895,540,932.46
  5. Step 5: Solve for x
    x = 100,895,540,932.46/526,994.97
  6. Step 6: Final answer
    x = 191,454.47

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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.