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Finding the Fourth Proportional to 1,044.14, 1,565.93 and 313.63

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Solution

The fourth proportional to 1,044.14, 1,565.93 and 313.63 is: 470.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.14 : 1,565.93 = 313.63 : x
  2. Step 2: Convert to fraction form
    1,044.14/1,565.93 = 313.63/x
  3. Step 3: Cross multiply
    1,044.14x = 1,565.93 × 313.63
  4. Step 4: Simplify right side
    1,044.14x = 491,119.50
  5. Step 5: Solve for x
    x = 491,119.50/1,044.14
  6. Step 6: Final answer
    x = 470.36

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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.