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Finding the Fourth Proportional to 372,743.70, 559,115.55 and 313,694.70

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Solution

The fourth proportional to 372,743.70, 559,115.55 and 313,694.70 is: 470,542.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,743.70 : 559,115.55 = 313,694.70 : x
  2. Step 2: Convert to fraction form
    372,743.70/559,115.55 = 313,694.70/x
  3. Step 3: Cross multiply
    372,743.70x = 559,115.55 × 313,694.70
  4. Step 4: Simplify right side
    372,743.70x = 175,391,584,722.59
  5. Step 5: Solve for x
    x = 175,391,584,722.59/372,743.70
  6. Step 6: Final answer
    x = 470,542.05

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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.