Home / 518,315.40-777,422.07-181,293.84

Finding the Fourth Proportional to 518,315.40, 777,422.07 and 181,293.84

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Solution

The fourth proportional to 518,315.40, 777,422.07 and 181,293.84 is: 271,922.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,315.40 : 777,422.07 = 181,293.84 : x
  2. Step 2: Convert to fraction form
    518,315.40/777,422.07 = 181,293.84/x
  3. Step 3: Cross multiply
    518,315.40x = 777,422.07 × 181,293.84
  4. Step 4: Simplify right side
    518,315.40x = 140,941,832,371.05
  5. Step 5: Solve for x
    x = 140,941,832,371.05/518,315.40
  6. Step 6: Final answer
    x = 271,922.91

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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.