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Finding the Fourth Proportional to 340,366.08, 469,658.88 and 189,442.56

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Solution

The fourth proportional to 340,366.08, 469,658.88 and 189,442.56 is: 261,404.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,366.08 : 469,658.88 = 189,442.56 : x
  2. Step 2: Convert to fraction form
    340,366.08/469,658.88 = 189,442.56/x
  3. Step 3: Cross multiply
    340,366.08x = 469,658.88 × 189,442.56
  4. Step 4: Simplify right side
    340,366.08x = 88,973,380,553.93
  5. Step 5: Solve for x
    x = 88,973,380,553.93/340,366.08
  6. Step 6: Final answer
    x = 261,404.96

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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.