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Finding the Fourth Proportional to 570,589,793.65, 855,287,331.76 and 238,786,908.49

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Solution

The fourth proportional to 570,589,793.65, 855,287,331.76 and 238,786,908.49 is: 357,930,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,589,793.65 : 855,287,331.76 = 238,786,908.49 : x
  2. Step 2: Convert to fraction form
    570,589,793.65/855,287,331.76 = 238,786,908.49/x
  3. Step 3: Cross multiply
    570,589,793.65x = 855,287,331.76 × 238,786,908.49
  4. Step 4: Simplify right side
    570,589,793.65x = 204,231,417,819,400,640
  5. Step 5: Solve for x
    x = 204,231,417,819,400,640/570,589,793.65
  6. Step 6: Final answer
    x = 357,930,373.26

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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.