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Finding the Fourth Proportional to 395,690.66, 594,128.91 and 342,546.56

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Solution

The fourth proportional to 395,690.66, 594,128.91 and 342,546.56 is: 514,333.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,690.66 : 594,128.91 = 342,546.56 : x
  2. Step 2: Convert to fraction form
    395,690.66/594,128.91 = 342,546.56/x
  3. Step 3: Cross multiply
    395,690.66x = 594,128.91 × 342,546.56
  4. Step 4: Simplify right side
    395,690.66x = 203,516,814,317.05
  5. Step 5: Solve for x
    x = 203,516,814,317.05/395,690.66
  6. Step 6: Final answer
    x = 514,333.13

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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.