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Finding the Fourth Proportional to 543,736.60, 813,992.10 and 404,114.20

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Solution

The fourth proportional to 543,736.60, 813,992.10 and 404,114.20 is: 604,972.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,736.60 : 813,992.10 = 404,114.20 : x
  2. Step 2: Convert to fraction form
    543,736.60/813,992.10 = 404,114.20/x
  3. Step 3: Cross multiply
    543,736.60x = 813,992.10 × 404,114.20
  4. Step 4: Simplify right side
    543,736.60x = 328,945,766,297.82
  5. Step 5: Solve for x
    x = 328,945,766,297.82/543,736.60
  6. Step 6: Final answer
    x = 604,972.64

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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.