Home / 777,321.72-1,073,199.24-634,422.60

Finding the Fourth Proportional to 777,321.72, 1,073,199.24 and 634,422.60

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Solution

The fourth proportional to 777,321.72, 1,073,199.24 and 634,422.60 is: 875,907.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,321.72 : 1,073,199.24 = 634,422.60 : x
  2. Step 2: Convert to fraction form
    777,321.72/1,073,199.24 = 634,422.60/x
  3. Step 3: Cross multiply
    777,321.72x = 1,073,199.24 × 634,422.60
  4. Step 4: Simplify right side
    777,321.72x = 680,861,852,158.82
  5. Step 5: Solve for x
    x = 680,861,852,158.82/777,321.72
  6. Step 6: Final answer
    x = 875,907.41

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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.