Home / 866,984.12-1,196,410.28-485,002.68

Finding the Fourth Proportional to 866,984.12, 1,196,410.28 and 485,002.68

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Solution

The fourth proportional to 866,984.12, 1,196,410.28 and 485,002.68 is: 669,288.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,984.12 : 1,196,410.28 = 485,002.68 : x
  2. Step 2: Convert to fraction form
    866,984.12/1,196,410.28 = 485,002.68/x
  3. Step 3: Cross multiply
    866,984.12x = 1,196,410.28 × 485,002.68
  4. Step 4: Simplify right side
    866,984.12x = 580,262,192,179.55
  5. Step 5: Solve for x
    x = 580,262,192,179.55/866,984.12
  6. Step 6: Final answer
    x = 669,288.14

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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.