Home / 856,795.84-1,285,462.35-515,611.54

Finding the Fourth Proportional to 856,795.84, 1,285,462.35 and 515,611.54

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Solution

The fourth proportional to 856,795.84, 1,285,462.35 and 515,611.54 is: 773,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,795.84 : 1,285,462.35 = 515,611.54 : x
  2. Step 2: Convert to fraction form
    856,795.84/1,285,462.35 = 515,611.54/x
  3. Step 3: Cross multiply
    856,795.84x = 1,285,462.35 × 515,611.54
  4. Step 4: Simplify right side
    856,795.84x = 662,799,223,502.35
  5. Step 5: Solve for x
    x = 662,799,223,502.35/856,795.84
  6. Step 6: Final answer
    x = 773,578.95

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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.