Home / 684,178.05-944,315.58-397,863.30

Finding the Fourth Proportional to 684,178.05, 944,315.58 and 397,863.30

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Solution

The fourth proportional to 684,178.05, 944,315.58 and 397,863.30 is: 549,138.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,178.05 : 944,315.58 = 397,863.30 : x
  2. Step 2: Convert to fraction form
    684,178.05/944,315.58 = 397,863.30/x
  3. Step 3: Cross multiply
    684,178.05x = 944,315.58 × 397,863.30
  4. Step 4: Simplify right side
    684,178.05x = 375,708,512,900.21
  5. Step 5: Solve for x
    x = 375,708,512,900.21/684,178.05
  6. Step 6: Final answer
    x = 549,138.51

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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.