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Finding the Fourth Proportional to 582.24, 803.36 and 346.16

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Solution

The fourth proportional to 582.24, 803.36 and 346.16 is: 477.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.24 : 803.36 = 346.16 : x
  2. Step 2: Convert to fraction form
    582.24/803.36 = 346.16/x
  3. Step 3: Cross multiply
    582.24x = 803.36 × 346.16
  4. Step 4: Simplify right side
    582.24x = 278,091.10
  5. Step 5: Solve for x
    x = 278,091.10/582.24
  6. Step 6: Final answer
    x = 477.62

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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.