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Finding the Fourth Proportional to 792.54, 1,186.38 and 583.86

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Solution

The fourth proportional to 792.54, 1,186.38 and 583.86 is: 874.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    792.54 : 1,186.38 = 583.86 : x
  2. Step 2: Convert to fraction form
    792.54/1,186.38 = 583.86/x
  3. Step 3: Cross multiply
    792.54x = 1,186.38 × 583.86
  4. Step 4: Simplify right side
    792.54x = 692,679.83
  5. Step 5: Solve for x
    x = 692,679.83/792.54
  6. Step 6: Final answer
    x = 874.00

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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.