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Finding the Fourth Proportional to 400,251.06, 599,587.64 and 325,455.66

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Solution

The fourth proportional to 400,251.06, 599,587.64 and 325,455.66 is: 487,541.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,251.06 : 599,587.64 = 325,455.66 : x
  2. Step 2: Convert to fraction form
    400,251.06/599,587.64 = 325,455.66/x
  3. Step 3: Cross multiply
    400,251.06x = 599,587.64 × 325,455.66
  4. Step 4: Simplify right side
    400,251.06x = 195,139,191,104.04
  5. Step 5: Solve for x
    x = 195,139,191,104.04/400,251.06
  6. Step 6: Final answer
    x = 487,541.97

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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.