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Finding the Fourth Proportional to 2,347.22, 3,520.96 and 703.60

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Solution

The fourth proportional to 2,347.22, 3,520.96 and 703.60 is: 1,055.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.22 : 3,520.96 = 703.60 : x
  2. Step 2: Convert to fraction form
    2,347.22/3,520.96 = 703.60/x
  3. Step 3: Cross multiply
    2,347.22x = 3,520.96 × 703.60
  4. Step 4: Simplify right side
    2,347.22x = 2,477,347.46
  5. Step 5: Solve for x
    x = 2,477,347.46/2,347.22
  6. Step 6: Final answer
    x = 1,055.44

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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.