Home / 1,239,920.92-1,711,090.20-696,057.76

Finding the Fourth Proportional to 1,239,920.92, 1,711,090.20 and 696,057.76

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Solution

The fourth proportional to 1,239,920.92, 1,711,090.20 and 696,057.76 is: 960,559.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,920.92 : 1,711,090.20 = 696,057.76 : x
  2. Step 2: Convert to fraction form
    1,239,920.92/1,711,090.20 = 696,057.76/x
  3. Step 3: Cross multiply
    1,239,920.92x = 1,711,090.20 × 696,057.76
  4. Step 4: Simplify right side
    1,239,920.92x = 1,191,017,611,769.95
  5. Step 5: Solve for x
    x = 1,191,017,611,769.95/1,239,920.92
  6. Step 6: Final answer
    x = 960,559.33

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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.