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Finding the Fourth Proportional to 431,530.40, 595,522.32 and 240,538.88

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Solution

The fourth proportional to 431,530.40, 595,522.32 and 240,538.88 is: 331,949.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,530.40 : 595,522.32 = 240,538.88 : x
  2. Step 2: Convert to fraction form
    431,530.40/595,522.32 = 240,538.88/x
  3. Step 3: Cross multiply
    431,530.40x = 595,522.32 × 240,538.88
  4. Step 4: Simplify right side
    431,530.40x = 143,246,271,867.80
  5. Step 5: Solve for x
    x = 143,246,271,867.80/431,530.40
  6. Step 6: Final answer
    x = 331,949.43

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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.