Home / 518,541.40-777,633.90-252,130.24

Finding the Fourth Proportional to 518,541.40, 777,633.90 and 252,130.24

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Solution

The fourth proportional to 518,541.40, 777,633.90 and 252,130.24 is: 378,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,541.40 : 777,633.90 = 252,130.24 : x
  2. Step 2: Convert to fraction form
    518,541.40/777,633.90 = 252,130.24/x
  3. Step 3: Cross multiply
    518,541.40x = 777,633.90 × 252,130.24
  4. Step 4: Simplify right side
    518,541.40x = 196,065,021,839.14
  5. Step 5: Solve for x
    x = 196,065,021,839.14/518,541.40
  6. Step 6: Final answer
    x = 378,108.71

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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.