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Finding the Fourth Proportional to 618,037,793.70, 927,056,690.55 and 570,686,400.60

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Solution

The fourth proportional to 618,037,793.70, 927,056,690.55 and 570,686,400.60 is: 856,029,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,037,793.70 : 927,056,690.55 = 570,686,400.60 : x
  2. Step 2: Convert to fraction form
    618,037,793.70/927,056,690.55 = 570,686,400.60/x
  3. Step 3: Cross multiply
    618,037,793.70x = 927,056,690.55 × 570,686,400.60
  4. Step 4: Simplify right side
    618,037,793.70x = 529,058,645,882,127,552
  5. Step 5: Solve for x
    x = 529,058,645,882,127,552/618,037,793.70
  6. Step 6: Final answer
    x = 856,029,600.90

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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.