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Finding the Fourth Proportional to 492,864.29, 739,323.34 and 155,879.79

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Solution

The fourth proportional to 492,864.29, 739,323.34 and 155,879.79 is: 233,828.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,864.29 : 739,323.34 = 155,879.79 : x
  2. Step 2: Convert to fraction form
    492,864.29/739,323.34 = 155,879.79/x
  3. Step 3: Cross multiply
    492,864.29x = 739,323.34 × 155,879.79
  4. Step 4: Simplify right side
    492,864.29x = 115,245,563,284.68
  5. Step 5: Solve for x
    x = 115,245,563,284.68/492,864.29
  6. Step 6: Final answer
    x = 233,828.19

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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.