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Finding the Fourth Proportional to 1,051.84, 1,451.46 and 586

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Solution

The fourth proportional to 1,051.84, 1,451.46 and 586 is: 808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.84 : 1,451.46 = 586 : x
  2. Step 2: Convert to fraction form
    1,051.84/1,451.46 = 586/x
  3. Step 3: Cross multiply
    1,051.84x = 1,451.46 × 586
  4. Step 4: Simplify right side
    1,051.84x = 850,555.56
  5. Step 5: Solve for x
    x = 850,555.56/1,051.84
  6. Step 6: Final answer
    x = 808.64

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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.