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Finding the Fourth Proportional to 876,650.56, 1,312,982.94 and 685,922.32

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Solution

The fourth proportional to 876,650.56, 1,312,982.94 and 685,922.32 is: 1,027,324.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,650.56 : 1,312,982.94 = 685,922.32 : x
  2. Step 2: Convert to fraction form
    876,650.56/1,312,982.94 = 685,922.32/x
  3. Step 3: Cross multiply
    876,650.56x = 1,312,982.94 × 685,922.32
  4. Step 4: Simplify right side
    876,650.56x = 900,604,304,325.22
  5. Step 5: Solve for x
    x = 900,604,304,325.22/876,650.56
  6. Step 6: Final answer
    x = 1,027,324.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.