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Finding the Fourth Proportional to 942.32, 1,410.75 and 576

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Solution

The fourth proportional to 942.32, 1,410.75 and 576 is: 862.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    942.32 : 1,410.75 = 576 : x
  2. Step 2: Convert to fraction form
    942.32/1,410.75 = 576/x
  3. Step 3: Cross multiply
    942.32x = 1,410.75 × 576
  4. Step 4: Simplify right side
    942.32x = 812,592
  5. Step 5: Solve for x
    x = 812,592/942.32
  6. Step 6: Final answer
    x = 862.33

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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.