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Finding the Fourth Proportional to 435,005.55, 652,297.36 and 255,149.74

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Solution

The fourth proportional to 435,005.55, 652,297.36 and 255,149.74 is: 382,600.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,005.55 : 652,297.36 = 255,149.74 : x
  2. Step 2: Convert to fraction form
    435,005.55/652,297.36 = 255,149.74/x
  3. Step 3: Cross multiply
    435,005.55x = 652,297.36 × 255,149.74
  4. Step 4: Simplify right side
    435,005.55x = 166,433,501,806.69
  5. Step 5: Solve for x
    x = 166,433,501,806.69/435,005.55
  6. Step 6: Final answer
    x = 382,600.87

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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.