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Finding the Fourth Proportional to 583.92, 875.40 and 401.66

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Solution

The fourth proportional to 583.92, 875.40 and 401.66 is: 602.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.92 : 875.40 = 401.66 : x
  2. Step 2: Convert to fraction form
    583.92/875.40 = 401.66/x
  3. Step 3: Cross multiply
    583.92x = 875.40 × 401.66
  4. Step 4: Simplify right side
    583.92x = 351,613.16
  5. Step 5: Solve for x
    x = 351,613.16/583.92
  6. Step 6: Final answer
    x = 602.16

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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.