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Finding the Fourth Proportional to 619,648,236.81, 855,129,901.05 and 337,406,150.61

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Solution

The fourth proportional to 619,648,236.81, 855,129,901.05 and 337,406,150.61 is: 465,628,837.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,648,236.81 : 855,129,901.05 = 337,406,150.61 : x
  2. Step 2: Convert to fraction form
    619,648,236.81/855,129,901.05 = 337,406,150.61/x
  3. Step 3: Cross multiply
    619,648,236.81x = 855,129,901.05 × 337,406,150.61
  4. Step 4: Simplify right side
    619,648,236.81x = 288,526,088,184,790,720
  5. Step 5: Solve for x
    x = 288,526,088,184,790,720/619,648,236.81
  6. Step 6: Final answer
    x = 465,628,837.53

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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.