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Finding the Fourth Proportional to 328,046.49, 452,692.53 and 198,999.72

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Solution

The fourth proportional to 328,046.49, 452,692.53 and 198,999.72 is: 274,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,046.49 : 452,692.53 = 198,999.72 : x
  2. Step 2: Convert to fraction form
    328,046.49/452,692.53 = 198,999.72/x
  3. Step 3: Cross multiply
    328,046.49x = 452,692.53 × 198,999.72
  4. Step 4: Simplify right side
    328,046.49x = 90,085,686,716.09
  5. Step 5: Solve for x
    x = 90,085,686,716.09/328,046.49
  6. Step 6: Final answer
    x = 274,612.56

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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.