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Finding the Fourth Proportional to 356,079.98, 491,389.53 and 194,934.98

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Solution

The fourth proportional to 356,079.98, 491,389.53 and 194,934.98 is: 269,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,079.98 : 491,389.53 = 194,934.98 : x
  2. Step 2: Convert to fraction form
    356,079.98/491,389.53 = 194,934.98/x
  3. Step 3: Cross multiply
    356,079.98x = 491,389.53 × 194,934.98
  4. Step 4: Simplify right side
    356,079.98x = 95,789,008,202.76
  5. Step 5: Solve for x
    x = 95,789,008,202.76/356,079.98
  6. Step 6: Final answer
    x = 269,009.81

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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.