Home / 641,621.20-962,431.80-582,572.20

Finding the Fourth Proportional to 641,621.20, 962,431.80 and 582,572.20

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Solution

The fourth proportional to 641,621.20, 962,431.80 and 582,572.20 is: 873,858.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,621.20 : 962,431.80 = 582,572.20 : x
  2. Step 2: Convert to fraction form
    641,621.20/962,431.80 = 582,572.20/x
  3. Step 3: Cross multiply
    641,621.20x = 962,431.80 × 582,572.20
  4. Step 4: Simplify right side
    641,621.20x = 560,686,011,075.96
  5. Step 5: Solve for x
    x = 560,686,011,075.96/641,621.20
  6. Step 6: Final answer
    x = 873,858.30

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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.