Home / 1,278,944.01-1,764,943.07-705,984.57

Finding the Fourth Proportional to 1,278,944.01, 1,764,943.07 and 705,984.57

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Solution

The fourth proportional to 1,278,944.01, 1,764,943.07 and 705,984.57 is: 974,258.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,944.01 : 1,764,943.07 = 705,984.57 : x
  2. Step 2: Convert to fraction form
    1,278,944.01/1,764,943.07 = 705,984.57/x
  3. Step 3: Cross multiply
    1,278,944.01x = 1,764,943.07 × 705,984.57
  4. Step 4: Simplify right side
    1,278,944.01x = 1,246,022,570,818.51
  5. Step 5: Solve for x
    x = 1,246,022,570,818.51/1,278,944.01
  6. Step 6: Final answer
    x = 974,258.89

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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.