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Finding the Fourth Proportional to 234,703.20, 351,480.61 and 211,958.40

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Solution

The fourth proportional to 234,703.20, 351,480.61 and 211,958.40 is: 317,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,703.20 : 351,480.61 = 211,958.40 : x
  2. Step 2: Convert to fraction form
    234,703.20/351,480.61 = 211,958.40/x
  3. Step 3: Cross multiply
    234,703.20x = 351,480.61 × 211,958.40
  4. Step 4: Simplify right side
    234,703.20x = 74,499,267,726.62
  5. Step 5: Solve for x
    x = 74,499,267,726.62/234,703.20
  6. Step 6: Final answer
    x = 317,419.05

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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.