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Finding the Fourth Proportional to 1,332.90, 1,999.36 and 467.22

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Solution

The fourth proportional to 1,332.90, 1,999.36 and 467.22 is: 700.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.90 : 1,999.36 = 467.22 : x
  2. Step 2: Convert to fraction form
    1,332.90/1,999.36 = 467.22/x
  3. Step 3: Cross multiply
    1,332.90x = 1,999.36 × 467.22
  4. Step 4: Simplify right side
    1,332.90x = 934,140.98
  5. Step 5: Solve for x
    x = 934,140.98/1,332.90
  6. Step 6: Final answer
    x = 700.83

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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.