Home / 1,188,163.20-1,783,119.60-478,700.40

Finding the Fourth Proportional to 1,188,163.20, 1,783,119.60 and 478,700.40

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Solution

The fourth proportional to 1,188,163.20, 1,783,119.60 and 478,700.40 is: 718,403.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,163.20 : 1,783,119.60 = 478,700.40 : x
  2. Step 2: Convert to fraction form
    1,188,163.20/1,783,119.60 = 478,700.40/x
  3. Step 3: Cross multiply
    1,188,163.20x = 1,783,119.60 × 478,700.40
  4. Step 4: Simplify right side
    1,188,163.20x = 853,580,065,767.84
  5. Step 5: Solve for x
    x = 853,580,065,767.84/1,188,163.20
  6. Step 6: Final answer
    x = 718,403.05

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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.