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Finding the Fourth Proportional to 338,998.45, 467,783.80 and 203,028.91

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Solution

The fourth proportional to 338,998.45, 467,783.80 and 203,028.91 is: 280,159.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,998.45 : 467,783.80 = 203,028.91 : x
  2. Step 2: Convert to fraction form
    338,998.45/467,783.80 = 203,028.91/x
  3. Step 3: Cross multiply
    338,998.45x = 467,783.80 × 203,028.91
  4. Step 4: Simplify right side
    338,998.45x = 94,973,635,029.66
  5. Step 5: Solve for x
    x = 94,973,635,029.66/338,998.45
  6. Step 6: Final answer
    x = 280,159.50

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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.