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Finding the Fourth Proportional to 322,870.40, 445,561.16 and 179,630.40

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Solution

The fourth proportional to 322,870.40, 445,561.16 and 179,630.40 is: 247,889.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,870.40 : 445,561.16 = 179,630.40 : x
  2. Step 2: Convert to fraction form
    322,870.40/445,561.16 = 179,630.40/x
  3. Step 3: Cross multiply
    322,870.40x = 445,561.16 × 179,630.40
  4. Step 4: Simplify right side
    322,870.40x = 80,036,329,395.26
  5. Step 5: Solve for x
    x = 80,036,329,395.26/322,870.40
  6. Step 6: Final answer
    x = 247,889.96

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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.