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Finding the Fourth Proportional to 352,396.91, 486,311.37 and 191,253.35

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Solution

The fourth proportional to 352,396.91, 486,311.37 and 191,253.35 is: 263,931.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,396.91 : 486,311.37 = 191,253.35 : x
  2. Step 2: Convert to fraction form
    352,396.91/486,311.37 = 191,253.35/x
  3. Step 3: Cross multiply
    352,396.91x = 486,311.37 × 191,253.35
  4. Step 4: Simplify right side
    352,396.91x = 93,008,678,655.59
  5. Step 5: Solve for x
    x = 93,008,678,655.59/352,396.91
  6. Step 6: Final answer
    x = 263,931.60

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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.