Home / 734,533.80-1,101,800.70-419,022.60

Finding the Fourth Proportional to 734,533.80, 1,101,800.70 and 419,022.60

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Solution

The fourth proportional to 734,533.80, 1,101,800.70 and 419,022.60 is: 628,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,533.80 : 1,101,800.70 = 419,022.60 : x
  2. Step 2: Convert to fraction form
    734,533.80/1,101,800.70 = 419,022.60/x
  3. Step 3: Cross multiply
    734,533.80x = 1,101,800.70 × 419,022.60
  4. Step 4: Simplify right side
    734,533.80x = 461,679,393,995.82
  5. Step 5: Solve for x
    x = 461,679,393,995.82/734,533.80
  6. Step 6: Final answer
    x = 628,533.90

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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.