Home / 1,283,776.98-1,925,042.04-643,806.24

Finding the Fourth Proportional to 1,283,776.98, 1,925,042.04 and 643,806.24

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Solution

The fourth proportional to 1,283,776.98, 1,925,042.04 and 643,806.24 is: 965,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283,776.98 : 1,925,042.04 = 643,806.24 : x
  2. Step 2: Convert to fraction form
    1,283,776.98/1,925,042.04 = 643,806.24/x
  3. Step 3: Cross multiply
    1,283,776.98x = 1,925,042.04 × 643,806.24
  4. Step 4: Simplify right side
    1,283,776.98x = 1,239,354,077,614.33
  5. Step 5: Solve for x
    x = 1,239,354,077,614.33/1,283,776.98
  6. Step 6: Final answer
    x = 965,396.71

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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.