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Finding the Fourth Proportional to 539,339.98, 744,288.60 and 297,622.48

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Solution

The fourth proportional to 539,339.98, 744,288.60 and 297,622.48 is: 410,718.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,339.98 : 744,288.60 = 297,622.48 : x
  2. Step 2: Convert to fraction form
    539,339.98/744,288.60 = 297,622.48/x
  3. Step 3: Cross multiply
    539,339.98x = 744,288.60 × 297,622.48
  4. Step 4: Simplify right side
    539,339.98x = 221,517,018,967.73
  5. Step 5: Solve for x
    x = 221,517,018,967.73/539,339.98
  6. Step 6: Final answer
    x = 410,718.71

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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.