Home / 823,670.79-1,236,305.12-397,506.57

Finding the Fourth Proportional to 823,670.79, 1,236,305.12 and 397,506.57

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Solution

The fourth proportional to 823,670.79, 1,236,305.12 and 397,506.57 is: 596,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,670.79 : 1,236,305.12 = 397,506.57 : x
  2. Step 2: Convert to fraction form
    823,670.79/1,236,305.12 = 397,506.57/x
  3. Step 3: Cross multiply
    823,670.79x = 1,236,305.12 × 397,506.57
  4. Step 4: Simplify right side
    823,670.79x = 491,439,405,737.11
  5. Step 5: Solve for x
    x = 491,439,405,737.11/823,670.79
  6. Step 6: Final answer
    x = 596,645.42

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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.