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Finding the Fourth Proportional to 526,995.22, 790,494.71 and 127,636.26

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Solution

The fourth proportional to 526,995.22, 790,494.71 and 127,636.26 is: 191,454.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,995.22 : 790,494.71 = 127,636.26 : x
  2. Step 2: Convert to fraction form
    526,995.22/790,494.71 = 127,636.26/x
  3. Step 3: Cross multiply
    526,995.22x = 790,494.71 × 127,636.26
  4. Step 4: Simplify right side
    526,995.22x = 100,895,787,696.00
  5. Step 5: Solve for x
    x = 100,895,787,696.00/526,995.22
  6. Step 6: Final answer
    x = 191,454.84

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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.