Home / 971,418.93-1,457,451.12-431,600.20

Finding the Fourth Proportional to 971,418.93, 1,457,451.12 and 431,600.20

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Solution

The fourth proportional to 971,418.93, 1,457,451.12 and 431,600.20 is: 647,543.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,418.93 : 1,457,451.12 = 431,600.20 : x
  2. Step 2: Convert to fraction form
    971,418.93/1,457,451.12 = 431,600.20/x
  3. Step 3: Cross multiply
    971,418.93x = 1,457,451.12 × 431,600.20
  4. Step 4: Simplify right side
    971,418.93x = 629,036,192,857.10
  5. Step 5: Solve for x
    x = 629,036,192,857.10/971,418.93
  6. Step 6: Final answer
    x = 647,543.69

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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.