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Finding the Fourth Proportional to 703.71, 1,055.03 and 582.75

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Solution

The fourth proportional to 703.71, 1,055.03 and 582.75 is: 873.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.71 : 1,055.03 = 582.75 : x
  2. Step 2: Convert to fraction form
    703.71/1,055.03 = 582.75/x
  3. Step 3: Cross multiply
    703.71x = 1,055.03 × 582.75
  4. Step 4: Simplify right side
    703.71x = 614,815.82
  5. Step 5: Solve for x
    x = 614,815.82/703.71
  6. Step 6: Final answer
    x = 873.68

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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.