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Finding the Fourth Proportional to 1,064.70, 1,594.62 and 833.22

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Solution

The fourth proportional to 1,064.70, 1,594.62 and 833.22 is: 1,247.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.70 : 1,594.62 = 833.22 : x
  2. Step 2: Convert to fraction form
    1,064.70/1,594.62 = 833.22/x
  3. Step 3: Cross multiply
    1,064.70x = 1,594.62 × 833.22
  4. Step 4: Simplify right side
    1,064.70x = 1,328,669.28
  5. Step 5: Solve for x
    x = 1,328,669.28/1,064.70
  6. Step 6: Final answer
    x = 1,247.93

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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.