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Finding the Fourth Proportional to 739,648.80, 1,109,473.20 and 606,679.20

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Solution

The fourth proportional to 739,648.80, 1,109,473.20 and 606,679.20 is: 910,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,648.80 : 1,109,473.20 = 606,679.20 : x
  2. Step 2: Convert to fraction form
    739,648.80/1,109,473.20 = 606,679.20/x
  3. Step 3: Cross multiply
    739,648.80x = 1,109,473.20 × 606,679.20
  4. Step 4: Simplify right side
    739,648.80x = 673,094,313,397.44
  5. Step 5: Solve for x
    x = 673,094,313,397.44/739,648.80
  6. Step 6: Final answer
    x = 910,018.80

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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.