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Finding the Fourth Proportional to 608,909.82, 913,452.21 and 188,218.50

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Solution

The fourth proportional to 608,909.82, 913,452.21 and 188,218.50 is: 282,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,909.82 : 913,452.21 = 188,218.50 : x
  2. Step 2: Convert to fraction form
    608,909.82/913,452.21 = 188,218.50/x
  3. Step 3: Cross multiply
    608,909.82x = 913,452.21 × 188,218.50
  4. Step 4: Simplify right side
    608,909.82x = 171,928,604,787.89
  5. Step 5: Solve for x
    x = 171,928,604,787.89/608,909.82
  6. Step 6: Final answer
    x = 282,354.79

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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.