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Finding the Fourth Proportional to 1,044.67, 1,567.16 and 314.15

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Solution

The fourth proportional to 1,044.67, 1,567.16 and 314.15 is: 471.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.67 : 1,567.16 = 314.15 : x
  2. Step 2: Convert to fraction form
    1,044.67/1,567.16 = 314.15/x
  3. Step 3: Cross multiply
    1,044.67x = 1,567.16 × 314.15
  4. Step 4: Simplify right side
    1,044.67x = 492,328.75
  5. Step 5: Solve for x
    x = 492,328.75/1,044.67
  6. Step 6: Final answer
    x = 471.28

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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.