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Finding the Fourth Proportional to 6,652,959.20, 9,979,438.80 and 2,393,266.40

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Solution

The fourth proportional to 6,652,959.20, 9,979,438.80 and 2,393,266.40 is: 3,589,899.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652,959.20 : 9,979,438.80 = 2,393,266.40 : x
  2. Step 2: Convert to fraction form
    6,652,959.20/9,979,438.80 = 2,393,266.40/x
  3. Step 3: Cross multiply
    6,652,959.20x = 9,979,438.80 × 2,393,266.40
  4. Step 4: Simplify right side
    6,652,959.20x = 23,883,455,570,896.32
  5. Step 5: Solve for x
    x = 23,883,455,570,896.32/6,652,959.20
  6. Step 6: Final answer
    x = 3,589,899.60

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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.