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Finding the Fourth Proportional to 582.48, 874.26 and 339.24

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Solution

The fourth proportional to 582.48, 874.26 and 339.24 is: 509.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.48 : 874.26 = 339.24 : x
  2. Step 2: Convert to fraction form
    582.48/874.26 = 339.24/x
  3. Step 3: Cross multiply
    582.48x = 874.26 × 339.24
  4. Step 4: Simplify right side
    582.48x = 296,583.96
  5. Step 5: Solve for x
    x = 296,583.96/582.48
  6. Step 6: Final answer
    x = 509.17

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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.