Home / 812,760.20-1,217,066.70-646,872.20

Finding the Fourth Proportional to 812,760.20, 1,217,066.70 and 646,872.20

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Solution

The fourth proportional to 812,760.20, 1,217,066.70 and 646,872.20 is: 968,657.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,760.20 : 1,217,066.70 = 646,872.20 : x
  2. Step 2: Convert to fraction form
    812,760.20/1,217,066.70 = 646,872.20/x
  3. Step 3: Cross multiply
    812,760.20x = 1,217,066.70 × 646,872.20
  4. Step 4: Simplify right side
    812,760.20x = 787,286,613,775.74
  5. Step 5: Solve for x
    x = 787,286,613,775.74/812,760.20
  6. Step 6: Final answer
    x = 968,657.93

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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.