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Finding the Fourth Proportional to 621,059,062.40, 929,797,003.20 and 621,059,062.40

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Solution

The fourth proportional to 621,059,062.40, 929,797,003.20 and 621,059,062.40 is: 929,797,003.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,059,062.40 : 929,797,003.20 = 621,059,062.40 : x
  2. Step 2: Convert to fraction form
    621,059,062.40/929,797,003.20 = 621,059,062.40/x
  3. Step 3: Cross multiply
    621,059,062.40x = 929,797,003.20 × 621,059,062.40
  4. Step 4: Simplify right side
    621,059,062.40x = 577,458,855,029,721,856
  5. Step 5: Solve for x
    x = 577,458,855,029,721,856/621,059,062.40
  6. Step 6: Final answer
    x = 929,797,003.20

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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.