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Finding the Fourth Proportional to 1,051.76, 1,451.44 and 586.02

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Solution

The fourth proportional to 1,051.76, 1,451.44 and 586.02 is: 808.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051.76 : 1,451.44 = 586.02 : x
  2. Step 2: Convert to fraction form
    1,051.76/1,451.44 = 586.02/x
  3. Step 3: Cross multiply
    1,051.76x = 1,451.44 × 586.02
  4. Step 4: Simplify right side
    1,051.76x = 850,572.87
  5. Step 5: Solve for x
    x = 850,572.87/1,051.76
  6. Step 6: Final answer
    x = 808.71

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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.