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Finding the Fourth Proportional to 387,614.44, 581,363.34 and 248,346.28

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Solution

The fourth proportional to 387,614.44, 581,363.34 and 248,346.28 is: 372,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,614.44 : 581,363.34 = 248,346.28 : x
  2. Step 2: Convert to fraction form
    387,614.44/581,363.34 = 248,346.28/x
  3. Step 3: Cross multiply
    387,614.44x = 581,363.34 × 248,346.28
  4. Step 4: Simplify right side
    387,614.44x = 144,379,422,817.38
  5. Step 5: Solve for x
    x = 144,379,422,817.38/387,614.44
  6. Step 6: Final answer
    x = 372,482.05

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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.