Home / 1,340,778.40-2,011,216.20-394,244.80

Finding the Fourth Proportional to 1,340,778.40, 2,011,216.20 and 394,244.80

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Solution

The fourth proportional to 1,340,778.40, 2,011,216.20 and 394,244.80 is: 591,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,778.40 : 2,011,216.20 = 394,244.80 : x
  2. Step 2: Convert to fraction form
    1,340,778.40/2,011,216.20 = 394,244.80/x
  3. Step 3: Cross multiply
    1,340,778.40x = 2,011,216.20 × 394,244.80
  4. Step 4: Simplify right side
    1,340,778.40x = 792,911,528,525.76
  5. Step 5: Solve for x
    x = 792,911,528,525.76/1,340,778.40
  6. Step 6: Final answer
    x = 591,381.49

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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.