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Finding the Fourth Proportional to 704.38, 1,056.76 and 582.08

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Solution

The fourth proportional to 704.38, 1,056.76 and 582.08 is: 873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    704.38 : 1,056.76 = 582.08 : x
  2. Step 2: Convert to fraction form
    704.38/1,056.76 = 582.08/x
  3. Step 3: Cross multiply
    704.38x = 1,056.76 × 582.08
  4. Step 4: Simplify right side
    704.38x = 615,118.86
  5. Step 5: Solve for x
    x = 615,118.86/704.38
  6. Step 6: Final answer
    x = 873.28

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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.