Home / 840,801.60-1,261,202.40-835,552.80

Finding the Fourth Proportional to 840,801.60, 1,261,202.40 and 835,552.80

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Solution

The fourth proportional to 840,801.60, 1,261,202.40 and 835,552.80 is: 1,253,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,801.60 : 1,261,202.40 = 835,552.80 : x
  2. Step 2: Convert to fraction form
    840,801.60/1,261,202.40 = 835,552.80/x
  3. Step 3: Cross multiply
    840,801.60x = 1,261,202.40 × 835,552.80
  4. Step 4: Simplify right side
    840,801.60x = 1,053,801,196,686.72
  5. Step 5: Solve for x
    x = 1,053,801,196,686.72/840,801.60
  6. Step 6: Final answer
    x = 1,253,329.20

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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.