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Finding the Fourth Proportional to 579,462.24, 869,016.56 and 400,696.86

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Solution

The fourth proportional to 579,462.24, 869,016.56 and 400,696.86 is: 600,923.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,462.24 : 869,016.56 = 400,696.86 : x
  2. Step 2: Convert to fraction form
    579,462.24/869,016.56 = 400,696.86/x
  3. Step 3: Cross multiply
    579,462.24x = 869,016.56 × 400,696.86
  4. Step 4: Simplify right side
    579,462.24x = 348,212,206,880.00
  5. Step 5: Solve for x
    x = 348,212,206,880.00/579,462.24
  6. Step 6: Final answer
    x = 600,923.03

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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.