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Finding the Fourth Proportional to 547,752.96, 755,823.92 and 306,005.48

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Solution

The fourth proportional to 547,752.96, 755,823.92 and 306,005.48 is: 422,245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,752.96 : 755,823.92 = 306,005.48 : x
  2. Step 2: Convert to fraction form
    547,752.96/755,823.92 = 306,005.48/x
  3. Step 3: Cross multiply
    547,752.96x = 755,823.92 × 306,005.48
  4. Step 4: Simplify right side
    547,752.96x = 231,286,261,435.08
  5. Step 5: Solve for x
    x = 231,286,261,435.08/547,752.96
  6. Step 6: Final answer
    x = 422,245.57

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1.5x scale

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.