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Finding the Fourth Proportional to 328,471.88, 453,291.80 and 177,568.88

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Solution

The fourth proportional to 328,471.88, 453,291.80 and 177,568.88 is: 245,045.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,471.88 : 453,291.80 = 177,568.88 : x
  2. Step 2: Convert to fraction form
    328,471.88/453,291.80 = 177,568.88/x
  3. Step 3: Cross multiply
    328,471.88x = 453,291.80 × 177,568.88
  4. Step 4: Simplify right side
    328,471.88x = 80,490,514,084.88
  5. Step 5: Solve for x
    x = 80,490,514,084.88/328,471.88
  6. Step 6: Final answer
    x = 245,045.38

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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.