Home / 1,293,166.80-1,939,750.40-394,613.28

Finding the Fourth Proportional to 1,293,166.80, 1,939,750.40 and 394,613.28

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Solution

The fourth proportional to 1,293,166.80, 1,939,750.40 and 394,613.28 is: 591,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,166.80 : 1,939,750.40 = 394,613.28 : x
  2. Step 2: Convert to fraction form
    1,293,166.80/1,939,750.40 = 394,613.28/x
  3. Step 3: Cross multiply
    1,293,166.80x = 1,939,750.40 × 394,613.28
  4. Step 4: Simplify right side
    1,293,166.80x = 765,451,267,725.31
  5. Step 5: Solve for x
    x = 765,451,267,725.31/1,293,166.80
  6. Step 6: Final answer
    x = 591,919.98

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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.