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Finding the Fourth Proportional to 326,693.34, 450,708.17 and 188,781.12

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Solution

The fourth proportional to 326,693.34, 450,708.17 and 188,781.12 is: 260,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,693.34 : 450,708.17 = 188,781.12 : x
  2. Step 2: Convert to fraction form
    326,693.34/450,708.17 = 188,781.12/x
  3. Step 3: Cross multiply
    326,693.34x = 450,708.17 × 188,781.12
  4. Step 4: Simplify right side
    326,693.34x = 85,085,192,181.84
  5. Step 5: Solve for x
    x = 85,085,192,181.84/326,693.34
  6. Step 6: Final answer
    x = 260,443.61

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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.