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Finding the Fourth Proportional to 1,048.41, 1,446.80 and 576.32

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Solution

The fourth proportional to 1,048.41, 1,446.80 and 576.32 is: 795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,048.41 : 1,446.80 = 576.32 : x
  2. Step 2: Convert to fraction form
    1,048.41/1,446.80 = 576.32/x
  3. Step 3: Cross multiply
    1,048.41x = 1,446.80 × 576.32
  4. Step 4: Simplify right side
    1,048.41x = 833,809.66
  5. Step 5: Solve for x
    x = 833,809.66/1,048.41
  6. Step 6: Final answer
    x = 795.31

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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.