Home / 1,339,539.40-2,005,809.90-1,276,553.80

Finding the Fourth Proportional to 1,339,539.40, 2,005,809.90 and 1,276,553.80

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Solution

The fourth proportional to 1,339,539.40, 2,005,809.90 and 1,276,553.80 is: 1,911,496.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,539.40 : 2,005,809.90 = 1,276,553.80 : x
  2. Step 2: Convert to fraction form
    1,339,539.40/2,005,809.90 = 1,276,553.80/x
  3. Step 3: Cross multiply
    1,339,539.40x = 2,005,809.90 × 1,276,553.80
  4. Step 4: Simplify right side
    1,339,539.40x = 2,560,524,249,922.62
  5. Step 5: Solve for x
    x = 2,560,524,249,922.62/1,339,539.40
  6. Step 6: Final answer
    x = 1,911,496.03

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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.