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Finding the Fourth Proportional to 345,519.60, 476,797.76 and 190,465.88

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Solution

The fourth proportional to 345,519.60, 476,797.76 and 190,465.88 is: 262,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,519.60 : 476,797.76 = 190,465.88 : x
  2. Step 2: Convert to fraction form
    345,519.60/476,797.76 = 190,465.88/x
  3. Step 3: Cross multiply
    345,519.60x = 476,797.76 × 190,465.88
  4. Step 4: Simplify right side
    345,519.60x = 90,813,704,940.43
  5. Step 5: Solve for x
    x = 90,813,704,940.43/345,519.60
  6. Step 6: Final answer
    x = 262,832.28

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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.