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Finding the Fourth Proportional to 532,729.74, 735,189.39 and 306,375.42

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Solution

The fourth proportional to 532,729.74, 735,189.39 and 306,375.42 is: 422,810.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,729.74 : 735,189.39 = 306,375.42 : x
  2. Step 2: Convert to fraction form
    532,729.74/735,189.39 = 306,375.42/x
  3. Step 3: Cross multiply
    532,729.74x = 735,189.39 × 306,375.42
  4. Step 4: Simplify right side
    532,729.74x = 225,243,958,140.79
  5. Step 5: Solve for x
    x = 225,243,958,140.79/532,729.74
  6. Step 6: Final answer
    x = 422,810.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.