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Finding the Fourth Proportional to 670,708.92, 925,646.22 and 384,267

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Solution

The fourth proportional to 670,708.92, 925,646.22 and 384,267 is: 530,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,708.92 : 925,646.22 = 384,267 : x
  2. Step 2: Convert to fraction form
    670,708.92/925,646.22 = 384,267/x
  3. Step 3: Cross multiply
    670,708.92x = 925,646.22 × 384,267
  4. Step 4: Simplify right side
    670,708.92x = 355,695,296,020.74
  5. Step 5: Solve for x
    x = 355,695,296,020.74/670,708.92
  6. Step 6: Final answer
    x = 530,327.37

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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.