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Finding the Fourth Proportional to 358,366.66, 494,340.29 and 223,997.38

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Solution

The fourth proportional to 358,366.66, 494,340.29 and 223,997.38 is: 308,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,366.66 : 494,340.29 = 223,997.38 : x
  2. Step 2: Convert to fraction form
    358,366.66/494,340.29 = 223,997.38/x
  3. Step 3: Cross multiply
    358,366.66x = 494,340.29 × 223,997.38
  4. Step 4: Simplify right side
    358,366.66x = 110,730,929,788.44
  5. Step 5: Solve for x
    x = 110,730,929,788.44/358,366.66
  6. Step 6: Final answer
    x = 308,987.81

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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.