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Finding the Fourth Proportional to 328,930.80, 461,125.20 and 328,930.80

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Solution

The fourth proportional to 328,930.80, 461,125.20 and 328,930.80 is: 461,125.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,930.80 : 461,125.20 = 328,930.80 : x
  2. Step 2: Convert to fraction form
    328,930.80/461,125.20 = 328,930.80/x
  3. Step 3: Cross multiply
    328,930.80x = 461,125.20 × 328,930.80
  4. Step 4: Simplify right side
    328,930.80x = 151,678,280,936.16
  5. Step 5: Solve for x
    x = 151,678,280,936.16/328,930.80
  6. Step 6: Final answer
    x = 461,125.20

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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.