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Finding the Fourth Proportional to 1,024.22, 1,533.59 and 612.33

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Solution

The fourth proportional to 1,024.22, 1,533.59 and 612.33 is: 916.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,024.22 : 1,533.59 = 612.33 : x
  2. Step 2: Convert to fraction form
    1,024.22/1,533.59 = 612.33/x
  3. Step 3: Cross multiply
    1,024.22x = 1,533.59 × 612.33
  4. Step 4: Simplify right side
    1,024.22x = 939,063.16
  5. Step 5: Solve for x
    x = 939,063.16/1,024.22
  6. Step 6: Final answer
    x = 916.86

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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.