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Finding the Fourth Proportional to 361,953.77, 499,519.81 and 208,998.39

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Solution

The fourth proportional to 361,953.77, 499,519.81 and 208,998.39 is: 288,431.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,953.77 : 499,519.81 = 208,998.39 : x
  2. Step 2: Convert to fraction form
    361,953.77/499,519.81 = 208,998.39/x
  3. Step 3: Cross multiply
    361,953.77x = 499,519.81 × 208,998.39
  4. Step 4: Simplify right side
    361,953.77x = 104,398,838,197.55
  5. Step 5: Solve for x
    x = 104,398,838,197.55/361,953.77
  6. Step 6: Final answer
    x = 288,431.42

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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.