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Finding the Fourth Proportional to 356,198.87, 491,557 and 195,068.79

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Solution

The fourth proportional to 356,198.87, 491,557 and 195,068.79 is: 269,196.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,198.87 : 491,557 = 195,068.79 : x
  2. Step 2: Convert to fraction form
    356,198.87/491,557 = 195,068.79/x
  3. Step 3: Cross multiply
    356,198.87x = 491,557 × 195,068.79
  4. Step 4: Simplify right side
    356,198.87x = 95,887,429,206.03
  5. Step 5: Solve for x
    x = 95,887,429,206.03/356,198.87
  6. Step 6: Final answer
    x = 269,196.33

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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.