Home / 711,932,327.06-982,466,469.47-394,413,205.91

Finding the Fourth Proportional to 711,932,327.06, 982,466,469.47 and 394,413,205.91

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Solution

The fourth proportional to 711,932,327.06, 982,466,469.47 and 394,413,205.91 is: 544,290,145.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,932,327.06 : 982,466,469.47 = 394,413,205.91 : x
  2. Step 2: Convert to fraction form
    711,932,327.06/982,466,469.47 = 394,413,205.91/x
  3. Step 3: Cross multiply
    711,932,327.06x = 982,466,469.47 × 394,413,205.91
  4. Step 4: Simplify right side
    711,932,327.06x = 387,497,749,918,815,488
  5. Step 5: Solve for x
    x = 387,497,749,918,815,488/711,932,327.06
  6. Step 6: Final answer
    x = 544,290,145.56

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1.5x scale

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.