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Finding the Fourth Proportional to 526,915.41, 790,375.05 and 127,555.44

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Solution

The fourth proportional to 526,915.41, 790,375.05 and 127,555.44 is: 191,333.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,915.41 : 790,375.05 = 127,555.44 : x
  2. Step 2: Convert to fraction form
    526,915.41/790,375.05 = 127,555.44/x
  3. Step 3: Cross multiply
    526,915.41x = 790,375.05 × 127,555.44
  4. Step 4: Simplify right side
    526,915.41x = 100,816,637,267.77
  5. Step 5: Solve for x
    x = 100,816,637,267.77/526,915.41
  6. Step 6: Final answer
    x = 191,333.63

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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.