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Finding the Fourth Proportional to 1,136.66, 1,705.42 and 588.50

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Solution

The fourth proportional to 1,136.66, 1,705.42 and 588.50 is: 882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.66 : 1,705.42 = 588.50 : x
  2. Step 2: Convert to fraction form
    1,136.66/1,705.42 = 588.50/x
  3. Step 3: Cross multiply
    1,136.66x = 1,705.42 × 588.50
  4. Step 4: Simplify right side
    1,136.66x = 1,003,639.67
  5. Step 5: Solve for x
    x = 1,003,639.67/1,136.66
  6. Step 6: Final answer
    x = 882.97

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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.