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Finding the Fourth Proportional to 923,641.80, 1,275,506.07 and 873,321.67

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Solution

The fourth proportional to 923,641.80, 1,275,506.07 and 873,321.67 is: 1,206,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,641.80 : 1,275,506.07 = 873,321.67 : x
  2. Step 2: Convert to fraction form
    923,641.80/1,275,506.07 = 873,321.67/x
  3. Step 3: Cross multiply
    923,641.80x = 1,275,506.07 × 873,321.67
  4. Step 4: Simplify right side
    923,641.80x = 1,113,927,087,204.68
  5. Step 5: Solve for x
    x = 1,113,927,087,204.68/923,641.80
  6. Step 6: Final answer
    x = 1,206,016.32

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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.