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Finding the Fourth Proportional to 486,833.32, 729,181.86 and 401,635.18

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Solution

The fourth proportional to 486,833.32, 729,181.86 and 401,635.18 is: 601,571.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,833.32 : 729,181.86 = 401,635.18 : x
  2. Step 2: Convert to fraction form
    486,833.32/729,181.86 = 401,635.18/x
  3. Step 3: Cross multiply
    486,833.32x = 729,181.86 × 401,635.18
  4. Step 4: Simplify right side
    486,833.32x = 292,865,087,593.84
  5. Step 5: Solve for x
    x = 292,865,087,593.84/486,833.32
  6. Step 6: Final answer
    x = 601,571.58

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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.