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Finding the Fourth Proportional to 659,325,607.72, 909,823,821.06 and 365,947,081

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Solution

The fourth proportional to 659,325,607.72, 909,823,821.06 and 365,947,081 is: 504,981,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,325,607.72 : 909,823,821.06 = 365,947,081 : x
  2. Step 2: Convert to fraction form
    659,325,607.72/909,823,821.06 = 365,947,081/x
  3. Step 3: Cross multiply
    659,325,607.72x = 909,823,821.06 × 365,947,081
  4. Step 4: Simplify right side
    659,325,607.72x = 332,947,371,541,173,312
  5. Step 5: Solve for x
    x = 332,947,371,541,173,312/659,325,607.72
  6. Step 6: Final answer
    x = 504,981,708.04

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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.