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Finding the Fourth Proportional to 568,115.64, 783,999 and 313,466.82

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Solution

The fourth proportional to 568,115.64, 783,999 and 313,466.82 is: 432,583.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,115.64 : 783,999 = 313,466.82 : x
  2. Step 2: Convert to fraction form
    568,115.64/783,999 = 313,466.82/x
  3. Step 3: Cross multiply
    568,115.64x = 783,999 × 313,466.82
  4. Step 4: Simplify right side
    568,115.64x = 245,757,673,413.18
  5. Step 5: Solve for x
    x = 245,757,673,413.18/568,115.64
  6. Step 6: Final answer
    x = 432,583.89

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1.5x scale

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.