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Finding the Fourth Proportional to 1,367.90, 2,051.30 and 501.74

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Solution

The fourth proportional to 1,367.90, 2,051.30 and 501.74 is: 752.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.90 : 2,051.30 = 501.74 : x
  2. Step 2: Convert to fraction form
    1,367.90/2,051.30 = 501.74/x
  3. Step 3: Cross multiply
    1,367.90x = 2,051.30 × 501.74
  4. Step 4: Simplify right side
    1,367.90x = 1,029,219.26
  5. Step 5: Solve for x
    x = 1,029,219.26/1,367.90
  6. Step 6: Final answer
    x = 752.41

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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.