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Finding the Fourth Proportional to 2,657,325.74, 3,979,995.80 and 1,234,387.40

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Solution

The fourth proportional to 2,657,325.74, 3,979,995.80 and 1,234,387.40 is: 1,848,797.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,325.74 : 3,979,995.80 = 1,234,387.40 : x
  2. Step 2: Convert to fraction form
    2,657,325.74/3,979,995.80 = 1,234,387.40/x
  3. Step 3: Cross multiply
    2,657,325.74x = 3,979,995.80 × 1,234,387.40
  4. Step 4: Simplify right side
    2,657,325.74x = 4,912,856,641,501.00
  5. Step 5: Solve for x
    x = 4,912,856,641,501.00/2,657,325.74
  6. Step 6: Final answer
    x = 1,848,797.30

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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.