Home / 1,286,400.70-1,775,116.65-713,439.10

Finding the Fourth Proportional to 1,286,400.70, 1,775,116.65 and 713,439.10

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Solution

The fourth proportional to 1,286,400.70, 1,775,116.65 and 713,439.10 is: 984,481.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,400.70 : 1,775,116.65 = 713,439.10 : x
  2. Step 2: Convert to fraction form
    1,286,400.70/1,775,116.65 = 713,439.10/x
  3. Step 3: Cross multiply
    1,286,400.70x = 1,775,116.65 × 713,439.10
  4. Step 4: Simplify right side
    1,286,400.70x = 1,266,437,625,171.01
  5. Step 5: Solve for x
    x = 1,266,437,625,171.01/1,286,400.70
  6. Step 6: Final answer
    x = 984,481.45

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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.