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Finding the Fourth Proportional to 407,788, 562,791.56 and 246,731.84

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Solution

The fourth proportional to 407,788, 562,791.56 and 246,731.84 is: 340,516.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,788 : 562,791.56 = 246,731.84 : x
  2. Step 2: Convert to fraction form
    407,788/562,791.56 = 246,731.84/x
  3. Step 3: Cross multiply
    407,788x = 562,791.56 × 246,731.84
  4. Step 4: Simplify right side
    407,788x = 138,858,597,135.27
  5. Step 5: Solve for x
    x = 138,858,597,135.27/407,788
  6. Step 6: Final answer
    x = 340,516.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.