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Finding the Fourth Proportional to 3,895,234.95, 5,375,702.40 and 2,152,866.90

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Solution

The fourth proportional to 3,895,234.95, 5,375,702.40 and 2,152,866.90 is: 2,971,110.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895,234.95 : 5,375,702.40 = 2,152,866.90 : x
  2. Step 2: Convert to fraction form
    3,895,234.95/5,375,702.40 = 2,152,866.90/x
  3. Step 3: Cross multiply
    3,895,234.95x = 5,375,702.40 × 2,152,866.90
  4. Step 4: Simplify right side
    3,895,234.95x = 11,573,171,761,210.56
  5. Step 5: Solve for x
    x = 11,573,171,761,210.56/3,895,234.95
  6. Step 6: Final answer
    x = 2,971,110.06

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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.