Home / 851,381.15-1,173,685.21-669,777.66

Finding the Fourth Proportional to 851,381.15, 1,173,685.21 and 669,777.66

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Solution

The fourth proportional to 851,381.15, 1,173,685.21 and 669,777.66 is: 923,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,381.15 : 1,173,685.21 = 669,777.66 : x
  2. Step 2: Convert to fraction form
    851,381.15/1,173,685.21 = 669,777.66/x
  3. Step 3: Cross multiply
    851,381.15x = 1,173,685.21 × 669,777.66
  4. Step 4: Simplify right side
    851,381.15x = 786,108,131,855.97
  5. Step 5: Solve for x
    x = 786,108,131,855.97/851,381.15
  6. Step 6: Final answer
    x = 923,332.79

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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.