Home / 694,541.80-1,041,812.70-409,940.20

Finding the Fourth Proportional to 694,541.80, 1,041,812.70 and 409,940.20

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Solution

The fourth proportional to 694,541.80, 1,041,812.70 and 409,940.20 is: 614,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,541.80 : 1,041,812.70 = 409,940.20 : x
  2. Step 2: Convert to fraction form
    694,541.80/1,041,812.70 = 409,940.20/x
  3. Step 3: Cross multiply
    694,541.80x = 1,041,812.70 × 409,940.20
  4. Step 4: Simplify right side
    694,541.80x = 427,080,906,600.54
  5. Step 5: Solve for x
    x = 427,080,906,600.54/694,541.80
  6. Step 6: Final answer
    x = 614,910.30

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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.