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Finding the Fourth Proportional to 1,774.86, 2,656.82 and 1,512.42

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Solution

The fourth proportional to 1,774.86, 2,656.82 and 1,512.42 is: 2,263.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.86 : 2,656.82 = 1,512.42 : x
  2. Step 2: Convert to fraction form
    1,774.86/2,656.82 = 1,512.42/x
  3. Step 3: Cross multiply
    1,774.86x = 2,656.82 × 1,512.42
  4. Step 4: Simplify right side
    1,774.86x = 4,018,220.14
  5. Step 5: Solve for x
    x = 4,018,220.14/1,774.86
  6. Step 6: Final answer
    x = 2,263.96

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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.