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Finding the Fourth Proportional to 1,335.94, 2,003.91 and 470.24

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Solution

The fourth proportional to 1,335.94, 2,003.91 and 470.24 is: 705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335.94 : 2,003.91 = 470.24 : x
  2. Step 2: Convert to fraction form
    1,335.94/2,003.91 = 470.24/x
  3. Step 3: Cross multiply
    1,335.94x = 2,003.91 × 470.24
  4. Step 4: Simplify right side
    1,335.94x = 942,318.64
  5. Step 5: Solve for x
    x = 942,318.64/1,335.94
  6. Step 6: Final answer
    x = 705.36

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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.