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Finding the Fourth Proportional to 6,447,773.44, 9,671,310.16 and 1,959,699.52

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Solution

The fourth proportional to 6,447,773.44, 9,671,310.16 and 1,959,699.52 is: 2,939,442.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447,773.44 : 9,671,310.16 = 1,959,699.52 : x
  2. Step 2: Convert to fraction form
    6,447,773.44/9,671,310.16 = 1,959,699.52/x
  3. Step 3: Cross multiply
    6,447,773.44x = 9,671,310.16 × 1,959,699.52
  4. Step 4: Simplify right side
    6,447,773.44x = 18,952,861,878,323.12
  5. Step 5: Solve for x
    x = 18,952,861,878,323.12/6,447,773.44
  6. Step 6: Final answer
    x = 2,939,442.90

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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.