Home / 1,278,371.26-1,918,412.25-530,417.26

Finding the Fourth Proportional to 1,278,371.26, 1,918,412.25 and 530,417.26

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Solution

The fourth proportional to 1,278,371.26, 1,918,412.25 and 530,417.26 is: 795,980.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,371.26 : 1,918,412.25 = 530,417.26 : x
  2. Step 2: Convert to fraction form
    1,278,371.26/1,918,412.25 = 530,417.26/x
  3. Step 3: Cross multiply
    1,278,371.26x = 1,918,412.25 × 530,417.26
  4. Step 4: Simplify right side
    1,278,371.26x = 1,017,558,969,195.44
  5. Step 5: Solve for x
    x = 1,017,558,969,195.44/1,278,371.26
  6. Step 6: Final answer
    x = 795,980.79

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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.