Home / 839,115.18-1,259,066.43-418,423.86

Finding the Fourth Proportional to 839,115.18, 1,259,066.43 and 418,423.86

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Solution

The fourth proportional to 839,115.18, 1,259,066.43 and 418,423.86 is: 627,832.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,115.18 : 1,259,066.43 = 418,423.86 : x
  2. Step 2: Convert to fraction form
    839,115.18/1,259,066.43 = 418,423.86/x
  3. Step 3: Cross multiply
    839,115.18x = 1,259,066.43 × 418,423.86
  4. Step 4: Simplify right side
    839,115.18x = 526,823,435,637.02
  5. Step 5: Solve for x
    x = 526,823,435,637.02/839,115.18
  6. Step 6: Final answer
    x = 627,832.09

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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.