Home / 612,056.97-844,738.92-509,920.47

Finding the Fourth Proportional to 612,056.97, 844,738.92 and 509,920.47

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Solution

The fourth proportional to 612,056.97, 844,738.92 and 509,920.47 is: 703,773.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,056.97 : 844,738.92 = 509,920.47 : x
  2. Step 2: Convert to fraction form
    612,056.97/844,738.92 = 509,920.47/x
  3. Step 3: Cross multiply
    612,056.97x = 844,738.92 × 509,920.47
  4. Step 4: Simplify right side
    612,056.97x = 430,749,667,113.69
  5. Step 5: Solve for x
    x = 430,749,667,113.69/612,056.97
  6. Step 6: Final answer
    x = 703,773.81

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1.5x scale

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.