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Finding the Fourth Proportional to 356,506.77, 491,979.81 and 195,367.71

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Solution

The fourth proportional to 356,506.77, 491,979.81 and 195,367.71 is: 269,607.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,506.77 : 491,979.81 = 195,367.71 : x
  2. Step 2: Convert to fraction form
    356,506.77/491,979.81 = 195,367.71/x
  3. Step 3: Cross multiply
    356,506.77x = 491,979.81 × 195,367.71
  4. Step 4: Simplify right side
    356,506.77x = 96,116,968,845.94
  5. Step 5: Solve for x
    x = 96,116,968,845.94/356,506.77
  6. Step 6: Final answer
    x = 269,607.70

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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.