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Finding the Fourth Proportional to 328,648.20, 453,534.48 and 177,745.20

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Solution

The fourth proportional to 328,648.20, 453,534.48 and 177,745.20 is: 245,288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,648.20 : 453,534.48 = 177,745.20 : x
  2. Step 2: Convert to fraction form
    328,648.20/453,534.48 = 177,745.20/x
  3. Step 3: Cross multiply
    328,648.20x = 453,534.48 × 177,745.20
  4. Step 4: Simplify right side
    328,648.20x = 80,613,576,854.50
  5. Step 5: Solve for x
    x = 80,613,576,854.50/328,648.20
  6. Step 6: Final answer
    x = 245,288.36

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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.