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Finding the Fourth Proportional to 568,049.06, 783,910.24 and 313,407.74

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Solution

The fourth proportional to 568,049.06, 783,910.24 and 313,407.74 is: 432,504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,049.06 : 783,910.24 = 313,407.74 : x
  2. Step 2: Convert to fraction form
    568,049.06/783,910.24 = 313,407.74/x
  3. Step 3: Cross multiply
    568,049.06x = 783,910.24 × 313,407.74
  4. Step 4: Simplify right side
    568,049.06x = 245,683,536,681.26
  5. Step 5: Solve for x
    x = 245,683,536,681.26/568,049.06
  6. Step 6: Final answer
    x = 432,504.08

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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.