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Finding the Fourth Proportional to 6,699,829.95, 9,245,310.44 and 3,643,978.59

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Solution

The fourth proportional to 6,699,829.95, 9,245,310.44 and 3,643,978.59 is: 5,028,443.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699,829.95 : 9,245,310.44 = 3,643,978.59 : x
  2. Step 2: Convert to fraction form
    6,699,829.95/9,245,310.44 = 3,643,978.59/x
  3. Step 3: Cross multiply
    6,699,829.95x = 9,245,310.44 × 3,643,978.59
  4. Step 4: Simplify right side
    6,699,829.95x = 33,689,713,283,043.59
  5. Step 5: Solve for x
    x = 33,689,713,283,043.59/6,699,829.95
  6. Step 6: Final answer
    x = 5,028,443.04

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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.