Home / 912,731.41-1,259,561.91-504,850.65

Finding the Fourth Proportional to 912,731.41, 1,259,561.91 and 504,850.65

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Solution

The fourth proportional to 912,731.41, 1,259,561.91 and 504,850.65 is: 696,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,731.41 : 1,259,561.91 = 504,850.65 : x
  2. Step 2: Convert to fraction form
    912,731.41/1,259,561.91 = 504,850.65/x
  3. Step 3: Cross multiply
    912,731.41x = 1,259,561.91 × 504,850.65
  4. Step 4: Simplify right side
    912,731.41x = 635,890,648,978.74
  5. Step 5: Solve for x
    x = 635,890,648,978.74/912,731.41
  6. Step 6: Final answer
    x = 696,689.78

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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.