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Finding the Fourth Proportional to 431,299.14, 595,184.89 and 240,308.42

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Solution

The fourth proportional to 431,299.14, 595,184.89 and 240,308.42 is: 331,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,299.14 : 595,184.89 = 240,308.42 : x
  2. Step 2: Convert to fraction form
    431,299.14/595,184.89 = 240,308.42/x
  3. Step 3: Cross multiply
    431,299.14x = 595,184.89 × 240,308.42
  4. Step 4: Simplify right side
    431,299.14x = 143,027,940,523.77
  5. Step 5: Solve for x
    x = 143,027,940,523.77/431,299.14
  6. Step 6: Final answer
    x = 331,621.21

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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.