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Finding the Fourth Proportional to 397,355.85, 548,343.27 and 216,066.24

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Solution

The fourth proportional to 397,355.85, 548,343.27 and 216,066.24 is: 298,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,355.85 : 548,343.27 = 216,066.24 : x
  2. Step 2: Convert to fraction form
    397,355.85/548,343.27 = 216,066.24/x
  3. Step 3: Cross multiply
    397,355.85x = 548,343.27 × 216,066.24
  4. Step 4: Simplify right side
    397,355.85x = 118,478,468,578.21
  5. Step 5: Solve for x
    x = 118,478,468,578.21/397,355.85
  6. Step 6: Final answer
    x = 298,167.17

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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.