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Finding the Fourth Proportional to 923,659.20, 1,275,530 and 873,339.08

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Solution

The fourth proportional to 923,659.20, 1,275,530 and 873,339.08 is: 1,206,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,659.20 : 1,275,530 = 873,339.08 : x
  2. Step 2: Convert to fraction form
    923,659.20/1,275,530 = 873,339.08/x
  3. Step 3: Cross multiply
    923,659.20x = 1,275,530 × 873,339.08
  4. Step 4: Simplify right side
    923,659.20x = 1,113,970,196,712.40
  5. Step 5: Solve for x
    x = 1,113,970,196,712.40/923,659.20
  6. Step 6: Final answer
    x = 1,206,040.28

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1.5x scale

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.