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Finding the Fourth Proportional to 243,917, 365,873.45 and 190,653.78

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Solution

The fourth proportional to 243,917, 365,873.45 and 190,653.78 is: 285,979.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,917 : 365,873.45 = 190,653.78 : x
  2. Step 2: Convert to fraction form
    243,917/365,873.45 = 190,653.78/x
  3. Step 3: Cross multiply
    243,917x = 365,873.45 × 190,653.78
  4. Step 4: Simplify right side
    243,917x = 69,755,156,244.14
  5. Step 5: Solve for x
    x = 69,755,156,244.14/243,917
  6. Step 6: Final answer
    x = 285,979.07

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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.