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Finding the Fourth Proportional to 976.96, 1,348.22 and 584

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Solution

The fourth proportional to 976.96, 1,348.22 and 584 is: 805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.96 : 1,348.22 = 584 : x
  2. Step 2: Convert to fraction form
    976.96/1,348.22 = 584/x
  3. Step 3: Cross multiply
    976.96x = 1,348.22 × 584
  4. Step 4: Simplify right side
    976.96x = 787,360.48
  5. Step 5: Solve for x
    x = 787,360.48/976.96
  6. Step 6: Final answer
    x = 805.93

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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.