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Finding the Fourth Proportional to 538,793.19, 806,966.37 and 417,879.54

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Solution

The fourth proportional to 538,793.19, 806,966.37 and 417,879.54 is: 625,870.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,793.19 : 806,966.37 = 417,879.54 : x
  2. Step 2: Convert to fraction form
    538,793.19/806,966.37 = 417,879.54/x
  3. Step 3: Cross multiply
    538,793.19x = 806,966.37 × 417,879.54
  4. Step 4: Simplify right side
    538,793.19x = 337,214,735,491.07
  5. Step 5: Solve for x
    x = 337,214,735,491.07/538,793.19
  6. Step 6: Final answer
    x = 625,870.45

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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.