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Finding the Fourth Proportional to 578,694.08, 867,214 and 325,443.04

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Solution

The fourth proportional to 578,694.08, 867,214 and 325,443.04 is: 487,699.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,694.08 : 867,214 = 325,443.04 : x
  2. Step 2: Convert to fraction form
    578,694.08/867,214 = 325,443.04/x
  3. Step 3: Cross multiply
    578,694.08x = 867,214 × 325,443.04
  4. Step 4: Simplify right side
    578,694.08x = 282,228,760,490.56
  5. Step 5: Solve for x
    x = 282,228,760,490.56/578,694.08
  6. Step 6: Final answer
    x = 487,699.41

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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.