Home / 512,826.86-769,465.47-272,884.21

Finding the Fourth Proportional to 512,826.86, 769,465.47 and 272,884.21

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Solution

The fourth proportional to 512,826.86, 769,465.47 and 272,884.21 is: 409,446.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,826.86 : 769,465.47 = 272,884.21 : x
  2. Step 2: Convert to fraction form
    512,826.86/769,465.47 = 272,884.21/x
  3. Step 3: Cross multiply
    512,826.86x = 769,465.47 × 272,884.21
  4. Step 4: Simplify right side
    512,826.86x = 209,974,976,903.23
  5. Step 5: Solve for x
    x = 209,974,976,903.23/512,826.86
  6. Step 6: Final answer
    x = 409,446.14

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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.