Home / 877,942.56-1,211,560.31-515,366.42

Finding the Fourth Proportional to 877,942.56, 1,211,560.31 and 515,366.42

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Solution

The fourth proportional to 877,942.56, 1,211,560.31 and 515,366.42 is: 711,205.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,942.56 : 1,211,560.31 = 515,366.42 : x
  2. Step 2: Convert to fraction form
    877,942.56/1,211,560.31 = 515,366.42/x
  3. Step 3: Cross multiply
    877,942.56x = 1,211,560.31 × 515,366.42
  4. Step 4: Simplify right side
    877,942.56x = 624,397,499,578.79
  5. Step 5: Solve for x
    x = 624,397,499,578.79/877,942.56
  6. Step 6: Final answer
    x = 711,205.41

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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.