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Finding the Fourth Proportional to 1,266,878.88, 1,747,806.24 and 723,044.88

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Solution

The fourth proportional to 1,266,878.88, 1,747,806.24 and 723,044.88 is: 997,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,878.88 : 1,747,806.24 = 723,044.88 : x
  2. Step 2: Convert to fraction form
    1,266,878.88/1,747,806.24 = 723,044.88/x
  3. Step 3: Cross multiply
    1,266,878.88x = 1,747,806.24 × 723,044.88
  4. Step 4: Simplify right side
    1,266,878.88x = 1,263,742,353,064.05
  5. Step 5: Solve for x
    x = 1,263,742,353,064.05/1,266,878.88
  6. Step 6: Final answer
    x = 997,524.21

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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.