Home / 1,278,814.10-1,764,806.22-698,071.68

Finding the Fourth Proportional to 1,278,814.10, 1,764,806.22 and 698,071.68

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Solution

The fourth proportional to 1,278,814.10, 1,764,806.22 and 698,071.68 is: 963,362.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,814.10 : 1,764,806.22 = 698,071.68 : x
  2. Step 2: Convert to fraction form
    1,278,814.10/1,764,806.22 = 698,071.68/x
  3. Step 3: Cross multiply
    1,278,814.10x = 1,764,806.22 × 698,071.68
  4. Step 4: Simplify right side
    1,278,814.10x = 1,231,961,242,869.85
  5. Step 5: Solve for x
    x = 1,231,961,242,869.85/1,278,814.10
  6. Step 6: Final answer
    x = 963,362.26

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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.