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Finding the Fourth Proportional to 539,662.26, 744,714.63 and 297,939.90

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Solution

The fourth proportional to 539,662.26, 744,714.63 and 297,939.90 is: 411,146.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,662.26 : 744,714.63 = 297,939.90 : x
  2. Step 2: Convert to fraction form
    539,662.26/744,714.63 = 297,939.90/x
  3. Step 3: Cross multiply
    539,662.26x = 744,714.63 × 297,939.90
  4. Step 4: Simplify right side
    539,662.26x = 221,880,202,390.74
  5. Step 5: Solve for x
    x = 221,880,202,390.74/539,662.26
  6. Step 6: Final answer
    x = 411,146.41

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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.