Home / 919,950.20-1,379,925.30-868,628.60

Finding the Fourth Proportional to 919,950.20, 1,379,925.30 and 868,628.60

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Solution

The fourth proportional to 919,950.20, 1,379,925.30 and 868,628.60 is: 1,302,942.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,950.20 : 1,379,925.30 = 868,628.60 : x
  2. Step 2: Convert to fraction form
    919,950.20/1,379,925.30 = 868,628.60/x
  3. Step 3: Cross multiply
    919,950.20x = 1,379,925.30 × 868,628.60
  4. Step 4: Simplify right side
    919,950.20x = 1,198,642,581,443.58
  5. Step 5: Solve for x
    x = 1,198,642,581,443.58/919,950.20
  6. Step 6: Final answer
    x = 1,302,942.90

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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.