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Finding the Fourth Proportional to 484,792.40, 669,342.12 and 303,577.04

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Solution

The fourth proportional to 484,792.40, 669,342.12 and 303,577.04 is: 419,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,792.40 : 669,342.12 = 303,577.04 : x
  2. Step 2: Convert to fraction form
    484,792.40/669,342.12 = 303,577.04/x
  3. Step 3: Cross multiply
    484,792.40x = 669,342.12 × 303,577.04
  4. Step 4: Simplify right side
    484,792.40x = 203,196,899,536.93
  5. Step 5: Solve for x
    x = 203,196,899,536.93/484,792.40
  6. Step 6: Final answer
    x = 419,142.09

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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.