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Finding the Fourth Proportional to 1,162.59, 1,742.40 and 544.93

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Solution

The fourth proportional to 1,162.59, 1,742.40 and 544.93 is: 816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.59 : 1,742.40 = 544.93 : x
  2. Step 2: Convert to fraction form
    1,162.59/1,742.40 = 544.93/x
  3. Step 3: Cross multiply
    1,162.59x = 1,742.40 × 544.93
  4. Step 4: Simplify right side
    1,162.59x = 949,484.02
  5. Step 5: Solve for x
    x = 949,484.02/1,162.59
  6. Step 6: Final answer
    x = 816.70

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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.