Home / 1,312,797.69-1,969,196.87-414,309.75

Finding the Fourth Proportional to 1,312,797.69, 1,969,196.87 and 414,309.75

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Solution

The fourth proportional to 1,312,797.69, 1,969,196.87 and 414,309.75 is: 621,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,797.69 : 1,969,196.87 = 414,309.75 : x
  2. Step 2: Convert to fraction form
    1,312,797.69/1,969,196.87 = 414,309.75/x
  3. Step 3: Cross multiply
    1,312,797.69x = 1,969,196.87 × 414,309.75
  4. Step 4: Simplify right side
    1,312,797.69x = 815,857,455,008.11
  5. Step 5: Solve for x
    x = 815,857,455,008.11/1,312,797.69
  6. Step 6: Final answer
    x = 621,464.72

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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.