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Finding the Fourth Proportional to 399,544.78, 599,612.02 and 189,182.38

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Solution

The fourth proportional to 399,544.78, 599,612.02 and 189,182.38 is: 283,913.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,544.78 : 599,612.02 = 189,182.38 : x
  2. Step 2: Convert to fraction form
    399,544.78/599,612.02 = 189,182.38/x
  3. Step 3: Cross multiply
    399,544.78x = 599,612.02 × 189,182.38
  4. Step 4: Simplify right side
    399,544.78x = 113,436,029,020.21
  5. Step 5: Solve for x
    x = 113,436,029,020.21/399,544.78
  6. Step 6: Final answer
    x = 283,913.18

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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.