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Finding the Fourth Proportional to 1,292.84, 1,940.16 and 562.92

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Solution

The fourth proportional to 1,292.84, 1,940.16 and 562.92 is: 844.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292.84 : 1,940.16 = 562.92 : x
  2. Step 2: Convert to fraction form
    1,292.84/1,940.16 = 562.92/x
  3. Step 3: Cross multiply
    1,292.84x = 1,940.16 × 562.92
  4. Step 4: Simplify right side
    1,292.84x = 1,092,154.87
  5. Step 5: Solve for x
    x = 1,092,154.87/1,292.84
  6. Step 6: Final answer
    x = 844.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.