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Finding the Fourth Proportional to 440,493.78, 608,173.97 and 338,336.58

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Solution

The fourth proportional to 440,493.78, 608,173.97 and 338,336.58 is: 467,129.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,493.78 : 608,173.97 = 338,336.58 : x
  2. Step 2: Convert to fraction form
    440,493.78/608,173.97 = 338,336.58/x
  3. Step 3: Cross multiply
    440,493.78x = 608,173.97 × 338,336.58
  4. Step 4: Simplify right side
    440,493.78x = 205,767,501,054.82
  5. Step 5: Solve for x
    x = 205,767,501,054.82/440,493.78
  6. Step 6: Final answer
    x = 467,129.19

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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.