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Finding the Fourth Proportional to 701,999.51, 968,759.55 and 396,140.90

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Solution

The fourth proportional to 701,999.51, 968,759.55 and 396,140.90 is: 546,674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,999.51 : 968,759.55 = 396,140.90 : x
  2. Step 2: Convert to fraction form
    701,999.51/968,759.55 = 396,140.90/x
  3. Step 3: Cross multiply
    701,999.51x = 968,759.55 × 396,140.90
  4. Step 4: Simplify right side
    701,999.51x = 383,765,275,176.80
  5. Step 5: Solve for x
    x = 383,765,275,176.80/701,999.51
  6. Step 6: Final answer
    x = 546,674.57

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Similar ratio
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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.