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Finding the Fourth Proportional to 1,044.98, 1,567.55 and 314.61

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Solution

The fourth proportional to 1,044.98, 1,567.55 and 314.61 is: 471.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.98 : 1,567.55 = 314.61 : x
  2. Step 2: Convert to fraction form
    1,044.98/1,567.55 = 314.61/x
  3. Step 3: Cross multiply
    1,044.98x = 1,567.55 × 314.61
  4. Step 4: Simplify right side
    1,044.98x = 493,166.91
  5. Step 5: Solve for x
    x = 493,166.91/1,044.98
  6. Step 6: Final answer
    x = 471.94

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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.