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Finding the Fourth Proportional to 407,961.84, 612,182.48 and 171,286.32

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Solution

The fourth proportional to 407,961.84, 612,182.48 and 171,286.32 is: 257,030.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,961.84 : 612,182.48 = 171,286.32 : x
  2. Step 2: Convert to fraction form
    407,961.84/612,182.48 = 171,286.32/x
  3. Step 3: Cross multiply
    407,961.84x = 612,182.48 × 171,286.32
  4. Step 4: Simplify right side
    407,961.84x = 104,858,484,167.67
  5. Step 5: Solve for x
    x = 104,858,484,167.67/407,961.84
  6. Step 6: Final answer
    x = 257,030.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.