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Finding the Fourth Proportional to 322,745.83, 445,358.07 and 186,752.70

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Solution

The fourth proportional to 322,745.83, 445,358.07 and 186,752.70 is: 257,700.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,745.83 : 445,358.07 = 186,752.70 : x
  2. Step 2: Convert to fraction form
    322,745.83/445,358.07 = 186,752.70/x
  3. Step 3: Cross multiply
    322,745.83x = 445,358.07 × 186,752.70
  4. Step 4: Simplify right side
    322,745.83x = 83,171,822,039.29
  5. Step 5: Solve for x
    x = 83,171,822,039.29/322,745.83
  6. Step 6: Final answer
    x = 257,700.69

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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.