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Finding the Fourth Proportional to 1,791,559.72, 2,472,674.34 and 1,027,865.80

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Solution

The fourth proportional to 1,791,559.72, 2,472,674.34 and 1,027,865.80 is: 1,418,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,559.72 : 2,472,674.34 = 1,027,865.80 : x
  2. Step 2: Convert to fraction form
    1,791,559.72/2,472,674.34 = 1,027,865.80/x
  3. Step 3: Cross multiply
    1,791,559.72x = 2,472,674.34 × 1,027,865.80
  4. Step 4: Simplify right side
    1,791,559.72x = 2,541,577,388,623.57
  5. Step 5: Solve for x
    x = 2,541,577,388,623.57/1,791,559.72
  6. Step 6: Final answer
    x = 1,418,639.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.