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Finding the Fourth Proportional to 1,048.66, 1,447.83 and 656.26

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Solution

The fourth proportional to 1,048.66, 1,447.83 and 656.26 is: 906.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.66 : 1,447.83 = 656.26 : x
  2. Step 2: Convert to fraction form
    1,048.66/1,447.83 = 656.26/x
  3. Step 3: Cross multiply
    1,048.66x = 1,447.83 × 656.26
  4. Step 4: Simplify right side
    1,048.66x = 950,152.92
  5. Step 5: Solve for x
    x = 950,152.92/1,048.66
  6. Step 6: Final answer
    x = 906.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.