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Finding the Fourth Proportional to 592.61, 817.01 and 492.64

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Solution

The fourth proportional to 592.61, 817.01 and 492.64 is: 679.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.61 : 817.01 = 492.64 : x
  2. Step 2: Convert to fraction form
    592.61/817.01 = 492.64/x
  3. Step 3: Cross multiply
    592.61x = 817.01 × 492.64
  4. Step 4: Simplify right side
    592.61x = 402,489.34
  5. Step 5: Solve for x
    x = 402,489.34/592.61
  6. Step 6: Final answer
    x = 679.18

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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.