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Finding the Fourth Proportional to 568,576.89, 783,701.67 and 403,061.25

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Solution

The fourth proportional to 568,576.89, 783,701.67 and 403,061.25 is: 555,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,576.89 : 783,701.67 = 403,061.25 : x
  2. Step 2: Convert to fraction form
    568,576.89/783,701.67 = 403,061.25/x
  3. Step 3: Cross multiply
    568,576.89x = 783,701.67 × 403,061.25
  4. Step 4: Simplify right side
    568,576.89x = 315,879,774,737.29
  5. Step 5: Solve for x
    x = 315,879,774,737.29/568,576.89
  6. Step 6: Final answer
    x = 555,562.11

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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.