Home / 1,290,668.99-1,936,007.12-392,118.17

Finding the Fourth Proportional to 1,290,668.99, 1,936,007.12 and 392,118.17

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Solution

The fourth proportional to 1,290,668.99, 1,936,007.12 and 392,118.17 is: 588,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,668.99 : 1,936,007.12 = 392,118.17 : x
  2. Step 2: Convert to fraction form
    1,290,668.99/1,936,007.12 = 392,118.17/x
  3. Step 3: Cross multiply
    1,290,668.99x = 1,936,007.12 × 392,118.17
  4. Step 4: Simplify right side
    1,290,668.99x = 759,143,560,301.63
  5. Step 5: Solve for x
    x = 759,143,560,301.63/1,290,668.99
  6. Step 6: Final answer
    x = 588,178.35

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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.