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Finding the Fourth Proportional to 1,242,922.36, 1,714,975.50 and 726,576.52

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Solution

The fourth proportional to 1,242,922.36, 1,714,975.50 and 726,576.52 is: 1,002,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,922.36 : 1,714,975.50 = 726,576.52 : x
  2. Step 2: Convert to fraction form
    1,242,922.36/1,714,975.50 = 726,576.52/x
  3. Step 3: Cross multiply
    1,242,922.36x = 1,714,975.50 × 726,576.52
  4. Step 4: Simplify right side
    1,242,922.36x = 1,246,060,930,675.26
  5. Step 5: Solve for x
    x = 1,246,060,930,675.26/1,242,922.36
  6. Step 6: Final answer
    x = 1,002,525.15

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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.