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Finding the Fourth Proportional to 792.42, 1,092.93 and 526.98

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Solution

The fourth proportional to 792.42, 1,092.93 and 526.98 is: 726.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.42 : 1,092.93 = 526.98 : x
  2. Step 2: Convert to fraction form
    792.42/1,092.93 = 526.98/x
  3. Step 3: Cross multiply
    792.42x = 1,092.93 × 526.98
  4. Step 4: Simplify right side
    792.42x = 575,952.25
  5. Step 5: Solve for x
    x = 575,952.25/792.42
  6. Step 6: Final answer
    x = 726.83

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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.