Home / 867,099.12-1,196,618.04-485,150.64

Finding the Fourth Proportional to 867,099.12, 1,196,618.04 and 485,150.64

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Solution

The fourth proportional to 867,099.12, 1,196,618.04 and 485,150.64 is: 669,519.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,099.12 : 1,196,618.04 = 485,150.64 : x
  2. Step 2: Convert to fraction form
    867,099.12/1,196,618.04 = 485,150.64/x
  3. Step 3: Cross multiply
    867,099.12x = 1,196,618.04 × 485,150.64
  4. Step 4: Simplify right side
    867,099.12x = 580,540,007,941.55
  5. Step 5: Solve for x
    x = 580,540,007,941.55/867,099.12
  6. Step 6: Final answer
    x = 669,519.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.