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Finding the Fourth Proportional to 358,269.94, 494,207.18 and 223,900.66

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Solution

The fourth proportional to 358,269.94, 494,207.18 and 223,900.66 is: 308,854.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,269.94 : 494,207.18 = 223,900.66 : x
  2. Step 2: Convert to fraction form
    358,269.94/494,207.18 = 223,900.66/x
  3. Step 3: Cross multiply
    358,269.94x = 494,207.18 × 223,900.66
  4. Step 4: Simplify right side
    358,269.94x = 110,653,313,778.74
  5. Step 5: Solve for x
    x = 110,653,313,778.74/358,269.94
  6. Step 6: Final answer
    x = 308,854.59

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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.