Home / 805,650.92-1,207,646.94-431,573.48

Finding the Fourth Proportional to 805,650.92, 1,207,646.94 and 431,573.48

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Solution

The fourth proportional to 805,650.92, 1,207,646.94 and 431,573.48 is: 646,915.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,650.92 : 1,207,646.94 = 431,573.48 : x
  2. Step 2: Convert to fraction form
    805,650.92/1,207,646.94 = 431,573.48/x
  3. Step 3: Cross multiply
    805,650.92x = 1,207,646.94 × 431,573.48
  4. Step 4: Simplify right side
    805,650.92x = 521,188,392,507.15
  5. Step 5: Solve for x
    x = 521,188,392,507.15/805,650.92
  6. Step 6: Final answer
    x = 646,915.90

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1.5x scale

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.