Home / 1,119,185.40-1,678,583.70-408,847.80

Finding the Fourth Proportional to 1,119,185.40, 1,678,583.70 and 408,847.80

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Solution

The fourth proportional to 1,119,185.40, 1,678,583.70 and 408,847.80 is: 613,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,185.40 : 1,678,583.70 = 408,847.80 : x
  2. Step 2: Convert to fraction form
    1,119,185.40/1,678,583.70 = 408,847.80/x
  3. Step 3: Cross multiply
    1,119,185.40x = 1,678,583.70 × 408,847.80
  4. Step 4: Simplify right side
    1,119,185.40x = 686,285,252,860.86
  5. Step 5: Solve for x
    x = 686,285,252,860.86/1,119,185.40
  6. Step 6: Final answer
    x = 613,200.68

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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.