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Finding the Fourth Proportional to 6,644,403.90, 9,327,359.70 and 6,644,403.90

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Solution

The fourth proportional to 6,644,403.90, 9,327,359.70 and 6,644,403.90 is: 9,327,359.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,644,403.90 : 9,327,359.70 = 6,644,403.90 : x
  2. Step 2: Convert to fraction form
    6,644,403.90/9,327,359.70 = 6,644,403.90/x
  3. Step 3: Cross multiply
    6,644,403.90x = 9,327,359.70 × 6,644,403.90
  4. Step 4: Simplify right side
    6,644,403.90x = 61,974,745,167,382.83
  5. Step 5: Solve for x
    x = 61,974,745,167,382.83/6,644,403.90
  6. Step 6: Final answer
    x = 9,327,359.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.