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Finding the Fourth Proportional to 1,267,817.22, 1,749,329.25 and 751,343.52

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Solution

The fourth proportional to 1,267,817.22, 1,749,329.25 and 751,343.52 is: 1,036,700.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,817.22 : 1,749,329.25 = 751,343.52 : x
  2. Step 2: Convert to fraction form
    1,267,817.22/1,749,329.25 = 751,343.52/x
  3. Step 3: Cross multiply
    1,267,817.22x = 1,749,329.25 × 751,343.52
  4. Step 4: Simplify right side
    1,267,817.22x = 1,314,347,196,333.96
  5. Step 5: Solve for x
    x = 1,314,347,196,333.96/1,267,817.22
  6. Step 6: Final answer
    x = 1,036,700.86

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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.