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Finding the Fourth Proportional to 1,026.17, 1,539.86 and 377.36

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Solution

The fourth proportional to 1,026.17, 1,539.86 and 377.36 is: 566.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.17 : 1,539.86 = 377.36 : x
  2. Step 2: Convert to fraction form
    1,026.17/1,539.86 = 377.36/x
  3. Step 3: Cross multiply
    1,026.17x = 1,539.86 × 377.36
  4. Step 4: Simplify right side
    1,026.17x = 581,071.98
  5. Step 5: Solve for x
    x = 581,071.98/1,026.17
  6. Step 6: Final answer
    x = 566.26

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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.