Home / 839,810,629.80-1,259,715,944.70-656,144,620.20

Finding the Fourth Proportional to 839,810,629.80, 1,259,715,944.70 and 656,144,620.20

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Solution

The fourth proportional to 839,810,629.80, 1,259,715,944.70 and 656,144,620.20 is: 984,216,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,629.80 : 1,259,715,944.70 = 656,144,620.20 : x
  2. Step 2: Convert to fraction form
    839,810,629.80/1,259,715,944.70 = 656,144,620.20/x
  3. Step 3: Cross multiply
    839,810,629.80x = 1,259,715,944.70 × 656,144,620.20
  4. Step 4: Simplify right side
    839,810,629.80x = 826,555,840,095,065,856
  5. Step 5: Solve for x
    x = 826,555,840,095,065,856/839,810,629.80
  6. Step 6: Final answer
    x = 984,216,930.30

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Half scale
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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.