Home / 863,679.98-1,191,836.77-471,189.57

Finding the Fourth Proportional to 863,679.98, 1,191,836.77 and 471,189.57

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Solution

The fourth proportional to 863,679.98, 1,191,836.77 and 471,189.57 is: 650,218.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,679.98 : 1,191,836.77 = 471,189.57 : x
  2. Step 2: Convert to fraction form
    863,679.98/1,191,836.77 = 471,189.57/x
  3. Step 3: Cross multiply
    863,679.98x = 1,191,836.77 × 471,189.57
  4. Step 4: Simplify right side
    863,679.98x = 561,581,055,166.49
  5. Step 5: Solve for x
    x = 561,581,055,166.49/863,679.98
  6. Step 6: Final answer
    x = 650,218.91

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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.