Home / 625,769.30-863,556.43-353,890.57

Finding the Fourth Proportional to 625,769.30, 863,556.43 and 353,890.57

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Solution

The fourth proportional to 625,769.30, 863,556.43 and 353,890.57 is: 488,366.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,769.30 : 863,556.43 = 353,890.57 : x
  2. Step 2: Convert to fraction form
    625,769.30/863,556.43 = 353,890.57/x
  3. Step 3: Cross multiply
    625,769.30x = 863,556.43 × 353,890.57
  4. Step 4: Simplify right side
    625,769.30x = 305,604,471,152.63
  5. Step 5: Solve for x
    x = 305,604,471,152.63/625,769.30
  6. Step 6: Final answer
    x = 488,366.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.