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Finding the Fourth Proportional to 1,026.44, 1,539.13 and 368.07

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Solution

The fourth proportional to 1,026.44, 1,539.13 and 368.07 is: 551.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.44 : 1,539.13 = 368.07 : x
  2. Step 2: Convert to fraction form
    1,026.44/1,539.13 = 368.07/x
  3. Step 3: Cross multiply
    1,026.44x = 1,539.13 × 368.07
  4. Step 4: Simplify right side
    1,026.44x = 566,507.58
  5. Step 5: Solve for x
    x = 566,507.58/1,026.44
  6. Step 6: Final answer
    x = 551.91

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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.