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Finding the Fourth Proportional to 618,995,897.20, 928,493,845.80 and 595,187,340.40

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Solution

The fourth proportional to 618,995,897.20, 928,493,845.80 and 595,187,340.40 is: 892,781,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,995,897.20 : 928,493,845.80 = 595,187,340.40 : x
  2. Step 2: Convert to fraction form
    618,995,897.20/928,493,845.80 = 595,187,340.40/x
  3. Step 3: Cross multiply
    618,995,897.20x = 928,493,845.80 × 595,187,340.40
  4. Step 4: Simplify right side
    618,995,897.20x = 552,627,782,659,469,632
  5. Step 5: Solve for x
    x = 552,627,782,659,469,632/618,995,897.20
  6. Step 6: Final answer
    x = 892,781,010.60

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1.5x scale

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.