Home / 1,239,528.88-1,859,313.48-386,623

Finding the Fourth Proportional to 1,239,528.88, 1,859,313.48 and 386,623

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Solution

The fourth proportional to 1,239,528.88, 1,859,313.48 and 386,623 is: 579,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,528.88 : 1,859,313.48 = 386,623 : x
  2. Step 2: Convert to fraction form
    1,239,528.88/1,859,313.48 = 386,623/x
  3. Step 3: Cross multiply
    1,239,528.88x = 1,859,313.48 × 386,623
  4. Step 4: Simplify right side
    1,239,528.88x = 718,853,355,578.04
  5. Step 5: Solve for x
    x = 718,853,355,578.04/1,239,528.88
  6. Step 6: Final answer
    x = 579,940.79

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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.