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Finding the Fourth Proportional to 367,979.70, 551,969.55 and 190,832.70

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Solution

The fourth proportional to 367,979.70, 551,969.55 and 190,832.70 is: 286,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,979.70 : 551,969.55 = 190,832.70 : x
  2. Step 2: Convert to fraction form
    367,979.70/551,969.55 = 190,832.70/x
  3. Step 3: Cross multiply
    367,979.70x = 551,969.55 × 190,832.70
  4. Step 4: Simplify right side
    367,979.70x = 105,333,839,544.29
  5. Step 5: Solve for x
    x = 105,333,839,544.29/367,979.70
  6. Step 6: Final answer
    x = 286,249.05

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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.