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Finding the Fourth Proportional to 364,858.20, 547,287.30 and 329,428.80

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Solution

The fourth proportional to 364,858.20, 547,287.30 and 329,428.80 is: 494,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,858.20 : 547,287.30 = 329,428.80 : x
  2. Step 2: Convert to fraction form
    364,858.20/547,287.30 = 329,428.80/x
  3. Step 3: Cross multiply
    364,858.20x = 547,287.30 × 329,428.80
  4. Step 4: Simplify right side
    364,858.20x = 180,292,198,494.24
  5. Step 5: Solve for x
    x = 180,292,198,494.24/364,858.20
  6. Step 6: Final answer
    x = 494,143.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.