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Finding the Fourth Proportional to 326,959.16, 451,189.24 and 191,005.72

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Solution

The fourth proportional to 326,959.16, 451,189.24 and 191,005.72 is: 263,579.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,959.16 : 451,189.24 = 191,005.72 : x
  2. Step 2: Convert to fraction form
    326,959.16/451,189.24 = 191,005.72/x
  3. Step 3: Cross multiply
    326,959.16x = 451,189.24 × 191,005.72
  4. Step 4: Simplify right side
    326,959.16x = 86,179,725,642.45
  5. Step 5: Solve for x
    x = 86,179,725,642.45/326,959.16
  6. Step 6: Final answer
    x = 263,579.48

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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.