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Finding the Fourth Proportional to 1,791,743.75, 2,472,606.51 and 986,927.75

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Solution

The fourth proportional to 1,791,743.75, 2,472,606.51 and 986,927.75 is: 1,361,960.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,743.75 : 2,472,606.51 = 986,927.75 : x
  2. Step 2: Convert to fraction form
    1,791,743.75/2,472,606.51 = 986,927.75/x
  3. Step 3: Cross multiply
    1,791,743.75x = 2,472,606.51 × 986,927.75
  4. Step 4: Simplify right side
    1,791,743.75x = 2,440,283,979,549.65
  5. Step 5: Solve for x
    x = 2,440,283,979,549.65/1,791,743.75
  6. Step 6: Final answer
    x = 1,361,960.37

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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.