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Finding the Fourth Proportional to 341,920.20, 471,859.30 and 188,968.30

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Solution

The fourth proportional to 341,920.20, 471,859.30 and 188,968.30 is: 260,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,920.20 : 471,859.30 = 188,968.30 : x
  2. Step 2: Convert to fraction form
    341,920.20/471,859.30 = 188,968.30/x
  3. Step 3: Cross multiply
    341,920.20x = 471,859.30 × 188,968.30
  4. Step 4: Simplify right side
    341,920.20x = 89,166,449,760.19
  5. Step 5: Solve for x
    x = 89,166,449,760.19/341,920.20
  6. Step 6: Final answer
    x = 260,781.46

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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.