Home / 1,719,613.80-2,578,764.60-521,137.80

Finding the Fourth Proportional to 1,719,613.80, 2,578,764.60 and 521,137.80

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Solution

The fourth proportional to 1,719,613.80, 2,578,764.60 and 521,137.80 is: 781,507.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,613.80 : 2,578,764.60 = 521,137.80 : x
  2. Step 2: Convert to fraction form
    1,719,613.80/2,578,764.60 = 521,137.80/x
  3. Step 3: Cross multiply
    1,719,613.80x = 2,578,764.60 × 521,137.80
  4. Step 4: Simplify right side
    1,719,613.80x = 1,343,891,710,361.88
  5. Step 5: Solve for x
    x = 1,343,891,710,361.88/1,719,613.80
  6. Step 6: Final answer
    x = 781,507.87

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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.