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Finding the Fourth Proportional to 1,044.65, 1,567.05 and 351.31

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Solution

The fourth proportional to 1,044.65, 1,567.05 and 351.31 is: 526.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.65 : 1,567.05 = 351.31 : x
  2. Step 2: Convert to fraction form
    1,044.65/1,567.05 = 351.31/x
  3. Step 3: Cross multiply
    1,044.65x = 1,567.05 × 351.31
  4. Step 4: Simplify right side
    1,044.65x = 550,520.34
  5. Step 5: Solve for x
    x = 550,520.34/1,044.65
  6. Step 6: Final answer
    x = 526.99

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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.