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Finding the Fourth Proportional to 428,081.26, 590,750.80 and 246,792.28

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Solution

The fourth proportional to 428,081.26, 590,750.80 and 246,792.28 is: 340,572.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,081.26 : 590,750.80 = 246,792.28 : x
  2. Step 2: Convert to fraction form
    428,081.26/590,750.80 = 246,792.28/x
  3. Step 3: Cross multiply
    428,081.26x = 590,750.80 × 246,792.28
  4. Step 4: Simplify right side
    428,081.26x = 145,792,736,843.82
  5. Step 5: Solve for x
    x = 145,792,736,843.82/428,081.26
  6. Step 6: Final answer
    x = 340,572.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.