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Finding the Fourth Proportional to 845.95, 1,167.42 and 472.92

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Solution

The fourth proportional to 845.95, 1,167.42 and 472.92 is: 652.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.95 : 1,167.42 = 472.92 : x
  2. Step 2: Convert to fraction form
    845.95/1,167.42 = 472.92/x
  3. Step 3: Cross multiply
    845.95x = 1,167.42 × 472.92
  4. Step 4: Simplify right side
    845.95x = 552,096.27
  5. Step 5: Solve for x
    x = 552,096.27/845.95
  6. Step 6: Final answer
    x = 652.63

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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.