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Finding the Fourth Proportional to 750.54, 1,123.68 and 596.70

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Solution

The fourth proportional to 750.54, 1,123.68 and 596.70 is: 893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.54 : 1,123.68 = 596.70 : x
  2. Step 2: Convert to fraction form
    750.54/1,123.68 = 596.70/x
  3. Step 3: Cross multiply
    750.54x = 1,123.68 × 596.70
  4. Step 4: Simplify right side
    750.54x = 670,499.86
  5. Step 5: Solve for x
    x = 670,499.86/750.54
  6. Step 6: Final answer
    x = 893.36

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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.