Home / 1,168,297.20-1,612,261.80-685,148.40

Finding the Fourth Proportional to 1,168,297.20, 1,612,261.80 and 685,148.40

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Solution

The fourth proportional to 1,168,297.20, 1,612,261.80 and 685,148.40 is: 945,511.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,297.20 : 1,612,261.80 = 685,148.40 : x
  2. Step 2: Convert to fraction form
    1,168,297.20/1,612,261.80 = 685,148.40/x
  3. Step 3: Cross multiply
    1,168,297.20x = 1,612,261.80 × 685,148.40
  4. Step 4: Simplify right side
    1,168,297.20x = 1,104,638,592,651.12
  5. Step 5: Solve for x
    x = 1,104,638,592,651.12/1,168,297.20
  6. Step 6: Final answer
    x = 945,511.63

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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.