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Finding the Fourth Proportional to 337,128.40, 506,020.20 and 263,054.80

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Solution

The fourth proportional to 337,128.40, 506,020.20 and 263,054.80 is: 394,837.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,128.40 : 506,020.20 = 263,054.80 : x
  2. Step 2: Convert to fraction form
    337,128.40/506,020.20 = 263,054.80/x
  3. Step 3: Cross multiply
    337,128.40x = 506,020.20 × 263,054.80
  4. Step 4: Simplify right side
    337,128.40x = 133,111,042,506.96
  5. Step 5: Solve for x
    x = 133,111,042,506.96/337,128.40
  6. Step 6: Final answer
    x = 394,837.82

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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.