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Finding the Fourth Proportional to 1,335.08, 2,001.36 and 468.92

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Solution

The fourth proportional to 1,335.08, 2,001.36 and 468.92 is: 702.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.08 : 2,001.36 = 468.92 : x
  2. Step 2: Convert to fraction form
    1,335.08/2,001.36 = 468.92/x
  3. Step 3: Cross multiply
    1,335.08x = 2,001.36 × 468.92
  4. Step 4: Simplify right side
    1,335.08x = 938,477.73
  5. Step 5: Solve for x
    x = 938,477.73/1,335.08
  6. Step 6: Final answer
    x = 702.94

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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.