Home / 957,188.07-1,320,902.49-521,609.22

Finding the Fourth Proportional to 957,188.07, 1,320,902.49 and 521,609.22

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Solution

The fourth proportional to 957,188.07, 1,320,902.49 and 521,609.22 is: 719,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,188.07 : 1,320,902.49 = 521,609.22 : x
  2. Step 2: Convert to fraction form
    957,188.07/1,320,902.49 = 521,609.22/x
  3. Step 3: Cross multiply
    957,188.07x = 1,320,902.49 × 521,609.22
  4. Step 4: Simplify right side
    957,188.07x = 688,994,917,504.96
  5. Step 5: Solve for x
    x = 688,994,917,504.96/957,188.07
  6. Step 6: Final answer
    x = 719,811.43

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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.