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Finding the Fourth Proportional to 539,425.98, 744,407.19 and 297,708.66

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Solution

The fourth proportional to 539,425.98, 744,407.19 and 297,708.66 is: 410,837.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,425.98 : 744,407.19 = 297,708.66 : x
  2. Step 2: Convert to fraction form
    539,425.98/744,407.19 = 297,708.66/x
  3. Step 3: Cross multiply
    539,425.98x = 744,407.19 × 297,708.66
  4. Step 4: Simplify right side
    539,425.98x = 221,616,467,029.27
  5. Step 5: Solve for x
    x = 221,616,467,029.27/539,425.98
  6. Step 6: Final answer
    x = 410,837.59

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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.