Home / 1,253,998.20-1,880,997.30-412,577.40

Finding the Fourth Proportional to 1,253,998.20, 1,880,997.30 and 412,577.40

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Solution

The fourth proportional to 1,253,998.20, 1,880,997.30 and 412,577.40 is: 618,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,998.20 : 1,880,997.30 = 412,577.40 : x
  2. Step 2: Convert to fraction form
    1,253,998.20/1,880,997.30 = 412,577.40/x
  3. Step 3: Cross multiply
    1,253,998.20x = 1,880,997.30 × 412,577.40
  4. Step 4: Simplify right side
    1,253,998.20x = 776,056,975,441.02
  5. Step 5: Solve for x
    x = 776,056,975,441.02/1,253,998.20
  6. Step 6: Final answer
    x = 618,866.10

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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.