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Finding the Fourth Proportional to 1,206.48, 1,809.72 and 1,044.48

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Solution

The fourth proportional to 1,206.48, 1,809.72 and 1,044.48 is: 1,566.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206.48 : 1,809.72 = 1,044.48 : x
  2. Step 2: Convert to fraction form
    1,206.48/1,809.72 = 1,044.48/x
  3. Step 3: Cross multiply
    1,206.48x = 1,809.72 × 1,044.48
  4. Step 4: Simplify right side
    1,206.48x = 1,890,216.35
  5. Step 5: Solve for x
    x = 1,890,216.35/1,206.48
  6. Step 6: Final answer
    x = 1,566.72

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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.