Home / 678,619.16-1,017,797.42-205,193.56

Finding the Fourth Proportional to 678,619.16, 1,017,797.42 and 205,193.56

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Solution

The fourth proportional to 678,619.16, 1,017,797.42 and 205,193.56 is: 307,750.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,619.16 : 1,017,797.42 = 205,193.56 : x
  2. Step 2: Convert to fraction form
    678,619.16/1,017,797.42 = 205,193.56/x
  3. Step 3: Cross multiply
    678,619.16x = 1,017,797.42 × 205,193.56
  4. Step 4: Simplify right side
    678,619.16x = 208,845,475,968.62
  5. Step 5: Solve for x
    x = 208,845,475,968.62/678,619.16
  6. Step 6: Final answer
    x = 307,750.63

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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.