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Finding the Fourth Proportional to 328,884.48, 453,859.20 and 185,642.88

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Solution

The fourth proportional to 328,884.48, 453,859.20 and 185,642.88 is: 256,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,884.48 : 453,859.20 = 185,642.88 : x
  2. Step 2: Convert to fraction form
    328,884.48/453,859.20 = 185,642.88/x
  3. Step 3: Cross multiply
    328,884.48x = 453,859.20 × 185,642.88
  4. Step 4: Simplify right side
    328,884.48x = 84,255,729,002.50
  5. Step 5: Solve for x
    x = 84,255,729,002.50/328,884.48
  6. Step 6: Final answer
    x = 256,186.39

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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.