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Finding the Fourth Proportional to 474,864.57, 655,317 and 281,282.94

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Solution

The fourth proportional to 474,864.57, 655,317 and 281,282.94 is: 388,172.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,864.57 : 655,317 = 281,282.94 : x
  2. Step 2: Convert to fraction form
    474,864.57/655,317 = 281,282.94/x
  3. Step 3: Cross multiply
    474,864.57x = 655,317 × 281,282.94
  4. Step 4: Simplify right side
    474,864.57x = 184,329,492,391.98
  5. Step 5: Solve for x
    x = 184,329,492,391.98/474,864.57
  6. Step 6: Final answer
    x = 388,172.76

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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.