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Finding the Fourth Proportional to 768.92, 1,153.91 and 595.98

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Solution

The fourth proportional to 768.92, 1,153.91 and 595.98 is: 894.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    768.92 : 1,153.91 = 595.98 : x
  2. Step 2: Convert to fraction form
    768.92/1,153.91 = 595.98/x
  3. Step 3: Cross multiply
    768.92x = 1,153.91 × 595.98
  4. Step 4: Simplify right side
    768.92x = 687,707.28
  5. Step 5: Solve for x
    x = 687,707.28/768.92
  6. Step 6: Final answer
    x = 894.38

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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.