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Finding the Fourth Proportional to 1,483.48, 2,223.30 and 703

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Solution

The fourth proportional to 1,483.48, 2,223.30 and 703 is: 1,053.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.48 : 2,223.30 = 703 : x
  2. Step 2: Convert to fraction form
    1,483.48/2,223.30 = 703/x
  3. Step 3: Cross multiply
    1,483.48x = 2,223.30 × 703
  4. Step 4: Simplify right side
    1,483.48x = 1,562,979.90
  5. Step 5: Solve for x
    x = 1,562,979.90/1,483.48
  6. Step 6: Final answer
    x = 1,053.59

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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.