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Finding the Fourth Proportional to 301,516.29, 416,287.17 and 186,917.40

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Solution

The fourth proportional to 301,516.29, 416,287.17 and 186,917.40 is: 258,066.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,516.29 : 416,287.17 = 186,917.40 : x
  2. Step 2: Convert to fraction form
    301,516.29/416,287.17 = 186,917.40/x
  3. Step 3: Cross multiply
    301,516.29x = 416,287.17 × 186,917.40
  4. Step 4: Simplify right side
    301,516.29x = 77,811,315,469.76
  5. Step 5: Solve for x
    x = 77,811,315,469.76/301,516.29
  6. Step 6: Final answer
    x = 258,066.71

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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.