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Finding the Fourth Proportional to 328,231.80, 458,591.40 and 328,231.80

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Solution

The fourth proportional to 328,231.80, 458,591.40 and 328,231.80 is: 458,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,231.80 : 458,591.40 = 328,231.80 : x
  2. Step 2: Convert to fraction form
    328,231.80/458,591.40 = 328,231.80/x
  3. Step 3: Cross multiply
    328,231.80x = 458,591.40 × 328,231.80
  4. Step 4: Simplify right side
    328,231.80x = 150,524,280,686.52
  5. Step 5: Solve for x
    x = 150,524,280,686.52/328,231.80
  6. Step 6: Final answer
    x = 458,591.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.