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Finding the Fourth Proportional to 328,531.88, 453,374.67 and 177,628.88

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Solution

The fourth proportional to 328,531.88, 453,374.67 and 177,628.88 is: 245,128.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,531.88 : 453,374.67 = 177,628.88 : x
  2. Step 2: Convert to fraction form
    328,531.88/453,374.67 = 177,628.88/x
  3. Step 3: Cross multiply
    328,531.88x = 453,374.67 × 177,628.88
  4. Step 4: Simplify right side
    328,531.88x = 80,532,434,852.47
  5. Step 5: Solve for x
    x = 80,532,434,852.47/328,531.88
  6. Step 6: Final answer
    x = 245,128.22

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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.