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Finding the Fourth Proportional to 428,042.66, 590,705.06 and 246,751.29

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Solution

The fourth proportional to 428,042.66, 590,705.06 and 246,751.29 is: 340,520.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,042.66 : 590,705.06 = 246,751.29 : x
  2. Step 2: Convert to fraction form
    428,042.66/590,705.06 = 246,751.29/x
  3. Step 3: Cross multiply
    428,042.66x = 590,705.06 × 246,751.29
  4. Step 4: Simplify right side
    428,042.66x = 145,757,234,330.77
  5. Step 5: Solve for x
    x = 145,757,234,330.77/428,042.66
  6. Step 6: Final answer
    x = 340,520.35

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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.