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Finding the Fourth Proportional to 322,278.40, 444,746.56 and 179,040.64

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Solution

The fourth proportional to 322,278.40, 444,746.56 and 179,040.64 is: 247,077.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,278.40 : 444,746.56 = 179,040.64 : x
  2. Step 2: Convert to fraction form
    322,278.40/444,746.56 = 179,040.64/x
  3. Step 3: Cross multiply
    322,278.40x = 444,746.56 × 179,040.64
  4. Step 4: Simplify right side
    322,278.40x = 79,627,708,740.20
  5. Step 5: Solve for x
    x = 79,627,708,740.20/322,278.40
  6. Step 6: Final answer
    x = 247,077.40

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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.