Home / 881,200.70-1,321,801.05-821,714.30

Finding the Fourth Proportional to 881,200.70, 1,321,801.05 and 821,714.30

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Solution

The fourth proportional to 881,200.70, 1,321,801.05 and 821,714.30 is: 1,232,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,200.70 : 1,321,801.05 = 821,714.30 : x
  2. Step 2: Convert to fraction form
    881,200.70/1,321,801.05 = 821,714.30/x
  3. Step 3: Cross multiply
    881,200.70x = 1,321,801.05 × 821,714.30
  4. Step 4: Simplify right side
    881,200.70x = 1,086,142,824,540.02
  5. Step 5: Solve for x
    x = 1,086,142,824,540.02/881,200.70
  6. Step 6: Final answer
    x = 1,232,571.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.