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Finding the Fourth Proportional to 552,018.44, 761,789.70 and 307,006.64

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Solution

The fourth proportional to 552,018.44, 761,789.70 and 307,006.64 is: 423,671.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,018.44 : 761,789.70 = 307,006.64 : x
  2. Step 2: Convert to fraction form
    552,018.44/761,789.70 = 307,006.64/x
  3. Step 3: Cross multiply
    552,018.44x = 761,789.70 × 307,006.64
  4. Step 4: Simplify right side
    552,018.44x = 233,874,496,183.61
  5. Step 5: Solve for x
    x = 233,874,496,183.61/552,018.44
  6. Step 6: Final answer
    x = 423,671.53

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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.