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Finding the Fourth Proportional to 1,969,932.40, 2,954,995.80 and 1,025,148.40

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Solution

The fourth proportional to 1,969,932.40, 2,954,995.80 and 1,025,148.40 is: 1,537,773.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969,932.40 : 2,954,995.80 = 1,025,148.40 : x
  2. Step 2: Convert to fraction form
    1,969,932.40/2,954,995.80 = 1,025,148.40/x
  3. Step 3: Cross multiply
    1,969,932.40x = 2,954,995.80 × 1,025,148.40
  4. Step 4: Simplify right side
    1,969,932.40x = 3,029,309,216,376.72
  5. Step 5: Solve for x
    x = 3,029,309,216,376.72/1,969,932.40
  6. Step 6: Final answer
    x = 1,537,773.18

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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.