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Finding the Fourth Proportional to 1,333.92, 1,999.62 and 467.68

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Solution

The fourth proportional to 1,333.92, 1,999.62 and 467.68 is: 701.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333.92 : 1,999.62 = 467.68 : x
  2. Step 2: Convert to fraction form
    1,333.92/1,999.62 = 467.68/x
  3. Step 3: Cross multiply
    1,333.92x = 1,999.62 × 467.68
  4. Step 4: Simplify right side
    1,333.92x = 935,182.28
  5. Step 5: Solve for x
    x = 935,182.28/1,333.92
  6. Step 6: Final answer
    x = 701.08

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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.