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Finding the Fourth Proportional to 322,686.06, 445,216.74 and 193,543.71

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Solution

The fourth proportional to 322,686.06, 445,216.74 and 193,543.71 is: 267,036.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,686.06 : 445,216.74 = 193,543.71 : x
  2. Step 2: Convert to fraction form
    322,686.06/445,216.74 = 193,543.71/x
  3. Step 3: Cross multiply
    322,686.06x = 445,216.74 × 193,543.71
  4. Step 4: Simplify right side
    322,686.06x = 86,168,899,613.71
  5. Step 5: Solve for x
    x = 86,168,899,613.71/322,686.06
  6. Step 6: Final answer
    x = 267,036.33

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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.