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Finding the Fourth Proportional to 652,634,165.70, 978,951,248.55 and 504,680,991.30

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Solution

The fourth proportional to 652,634,165.70, 978,951,248.55 and 504,680,991.30 is: 757,021,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,634,165.70 : 978,951,248.55 = 504,680,991.30 : x
  2. Step 2: Convert to fraction form
    652,634,165.70/978,951,248.55 = 504,680,991.30/x
  3. Step 3: Cross multiply
    652,634,165.70x = 978,951,248.55 × 504,680,991.30
  4. Step 4: Simplify right side
    652,634,165.70x = 494,058,086,552,586,688
  5. Step 5: Solve for x
    x = 494,058,086,552,586,688/652,634,165.70
  6. Step 6: Final answer
    x = 757,021,486.95

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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.