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Finding the Fourth Proportional to 1,367.16, 2,048.40 and 933

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Solution

The fourth proportional to 1,367.16, 2,048.40 and 933 is: 1,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367.16 : 2,048.40 = 933 : x
  2. Step 2: Convert to fraction form
    1,367.16/2,048.40 = 933/x
  3. Step 3: Cross multiply
    1,367.16x = 2,048.40 × 933
  4. Step 4: Simplify right side
    1,367.16x = 1,911,157.20
  5. Step 5: Solve for x
    x = 1,911,157.20/1,367.16
  6. Step 6: Final answer
    x = 1,397.90

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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.