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Finding the Fourth Proportional to 568,005.56, 783,847.63 and 313,356.75

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Solution

The fourth proportional to 568,005.56, 783,847.63 and 313,356.75 is: 432,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,005.56 : 783,847.63 = 313,356.75 : x
  2. Step 2: Convert to fraction form
    568,005.56/783,847.63 = 313,356.75/x
  3. Step 3: Cross multiply
    568,005.56x = 783,847.63 × 313,356.75
  4. Step 4: Simplify right side
    568,005.56x = 245,623,947,693.41
  5. Step 5: Solve for x
    x = 245,623,947,693.41/568,005.56
  6. Step 6: Final answer
    x = 432,432.29

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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.