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Finding the Fourth Proportional to 592.96, 815.34 and 574.72

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Solution

The fourth proportional to 592.96, 815.34 and 574.72 is: 790.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.96 : 815.34 = 574.72 : x
  2. Step 2: Convert to fraction form
    592.96/815.34 = 574.72/x
  3. Step 3: Cross multiply
    592.96x = 815.34 × 574.72
  4. Step 4: Simplify right side
    592.96x = 468,592.20
  5. Step 5: Solve for x
    x = 468,592.20/592.96
  6. Step 6: Final answer
    x = 790.26

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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.