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Finding the Fourth Proportional to 356,134.53, 491,465.72 and 194,989.62

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Solution

The fourth proportional to 356,134.53, 491,465.72 and 194,989.62 is: 269,085.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,134.53 : 491,465.72 = 194,989.62 : x
  2. Step 2: Convert to fraction form
    356,134.53/491,465.72 = 194,989.62/x
  3. Step 3: Cross multiply
    356,134.53x = 491,465.72 × 194,989.62
  4. Step 4: Simplify right side
    356,134.53x = 95,830,710,553.55
  5. Step 5: Solve for x
    x = 95,830,710,553.55/356,134.53
  6. Step 6: Final answer
    x = 269,085.71

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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.