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Finding the Fourth Proportional to 364,920.76, 503,447.64 and 211,932.80

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Solution

The fourth proportional to 364,920.76, 503,447.64 and 211,932.80 is: 292,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,920.76 : 503,447.64 = 211,932.80 : x
  2. Step 2: Convert to fraction form
    364,920.76/503,447.64 = 211,932.80/x
  3. Step 3: Cross multiply
    364,920.76x = 503,447.64 × 211,932.80
  4. Step 4: Simplify right side
    364,920.76x = 106,697,067,998.59
  5. Step 5: Solve for x
    x = 106,697,067,998.59/364,920.76
  6. Step 6: Final answer
    x = 292,384.21

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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.