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Finding the Fourth Proportional to 1,007.92, 1,391.16 and 594.16

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Solution

The fourth proportional to 1,007.92, 1,391.16 and 594.16 is: 820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007.92 : 1,391.16 = 594.16 : x
  2. Step 2: Convert to fraction form
    1,007.92/1,391.16 = 594.16/x
  3. Step 3: Cross multiply
    1,007.92x = 1,391.16 × 594.16
  4. Step 4: Simplify right side
    1,007.92x = 826,571.63
  5. Step 5: Solve for x
    x = 826,571.63/1,007.92
  6. Step 6: Final answer
    x = 820.08

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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.