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Finding the Fourth Proportional to 328,883.52, 453,860.64 and 185,645.28

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Solution

The fourth proportional to 328,883.52, 453,860.64 and 185,645.28 is: 256,191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,883.52 : 453,860.64 = 185,645.28 : x
  2. Step 2: Convert to fraction form
    328,883.52/453,860.64 = 185,645.28/x
  3. Step 3: Cross multiply
    328,883.52x = 453,860.64 × 185,645.28
  4. Step 4: Simplify right side
    328,883.52x = 84,257,085,593.78
  5. Step 5: Solve for x
    x = 84,257,085,593.78/328,883.52
  6. Step 6: Final answer
    x = 256,191.27

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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.