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Finding the Fourth Proportional to 932.08, 1,285.56 and 582.64

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Solution

The fourth proportional to 932.08, 1,285.56 and 582.64 is: 803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.08 : 1,285.56 = 582.64 : x
  2. Step 2: Convert to fraction form
    932.08/1,285.56 = 582.64/x
  3. Step 3: Cross multiply
    932.08x = 1,285.56 × 582.64
  4. Step 4: Simplify right side
    932.08x = 749,018.68
  5. Step 5: Solve for x
    x = 749,018.68/932.08
  6. Step 6: Final answer
    x = 803.60

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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.