Home / 986,660.42-1,361,492.97-556,857.55

Finding the Fourth Proportional to 986,660.42, 1,361,492.97 and 556,857.55

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Solution

The fourth proportional to 986,660.42, 1,361,492.97 and 556,857.55 is: 768,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,660.42 : 1,361,492.97 = 556,857.55 : x
  2. Step 2: Convert to fraction form
    986,660.42/1,361,492.97 = 556,857.55/x
  3. Step 3: Cross multiply
    986,660.42x = 1,361,492.97 × 556,857.55
  4. Step 4: Simplify right side
    986,660.42x = 758,157,632,808.96
  5. Step 5: Solve for x
    x = 758,157,632,808.96/986,660.42
  6. Step 6: Final answer
    x = 768,407.87

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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.