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Finding the Fourth Proportional to 1,777.82, 2,453.91 and 1,031.95

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Solution

The fourth proportional to 1,777.82, 2,453.91 and 1,031.95 is: 1,424.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.82 : 2,453.91 = 1,031.95 : x
  2. Step 2: Convert to fraction form
    1,777.82/2,453.91 = 1,031.95/x
  3. Step 3: Cross multiply
    1,777.82x = 2,453.91 × 1,031.95
  4. Step 4: Simplify right side
    1,777.82x = 2,532,312.42
  5. Step 5: Solve for x
    x = 2,532,312.42/1,777.82
  6. Step 6: Final answer
    x = 1,424.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.