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Finding the Fourth Proportional to 547,540.68, 755,598.16 and 305,826.68

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Solution

The fourth proportional to 547,540.68, 755,598.16 and 305,826.68 is: 422,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,540.68 : 755,598.16 = 305,826.68 : x
  2. Step 2: Convert to fraction form
    547,540.68/755,598.16 = 305,826.68/x
  3. Step 3: Cross multiply
    547,540.68x = 755,598.16 × 305,826.68
  4. Step 4: Simplify right side
    547,540.68x = 231,082,076,686.91
  5. Step 5: Solve for x
    x = 231,082,076,686.91/547,540.68
  6. Step 6: Final answer
    x = 422,036.36

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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.