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Finding the Fourth Proportional to 621,896.15, 932,844.23 and 343,184.87

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Solution

The fourth proportional to 621,896.15, 932,844.23 and 343,184.87 is: 514,777.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,896.15 : 932,844.23 = 343,184.87 : x
  2. Step 2: Convert to fraction form
    621,896.15/932,844.23 = 343,184.87/x
  3. Step 3: Cross multiply
    621,896.15x = 932,844.23 × 343,184.87
  4. Step 4: Simplify right side
    621,896.15x = 320,138,027,705.93
  5. Step 5: Solve for x
    x = 320,138,027,705.93/621,896.15
  6. Step 6: Final answer
    x = 514,777.31

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Double scale
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Similar ratio
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1.5x scale

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.