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Finding the Fourth Proportional to 326,856.74, 450,932.60 and 189,010.20

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Solution

The fourth proportional to 326,856.74, 450,932.60 and 189,010.20 is: 260,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,856.74 : 450,932.60 = 189,010.20 : x
  2. Step 2: Convert to fraction form
    326,856.74/450,932.60 = 189,010.20/x
  3. Step 3: Cross multiply
    326,856.74x = 450,932.60 × 189,010.20
  4. Step 4: Simplify right side
    326,856.74x = 85,230,857,712.81
  5. Step 5: Solve for x
    x = 85,230,857,712.81/326,856.74
  6. Step 6: Final answer
    x = 260,759.06

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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.