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Finding the Fourth Proportional to 6,480,400.40, 9,708,936.60 and 5,141,373.20

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Solution

The fourth proportional to 6,480,400.40, 9,708,936.60 and 5,141,373.20 is: 7,702,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480,400.40 : 9,708,936.60 = 5,141,373.20 : x
  2. Step 2: Convert to fraction form
    6,480,400.40/9,708,936.60 = 5,141,373.20/x
  3. Step 3: Cross multiply
    6,480,400.40x = 9,708,936.60 × 5,141,373.20
  4. Step 4: Simplify right side
    6,480,400.40x = 49,917,266,435,739.12
  5. Step 5: Solve for x
    x = 49,917,266,435,739.12/6,480,400.40
  6. Step 6: Final answer
    x = 7,702,805.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.