Home / 985,008.60-1,359,523.20-622,201.68

Finding the Fourth Proportional to 985,008.60, 1,359,523.20 and 622,201.68

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Solution

The fourth proportional to 985,008.60, 1,359,523.20 and 622,201.68 is: 858,771.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,008.60 : 1,359,523.20 = 622,201.68 : x
  2. Step 2: Convert to fraction form
    985,008.60/1,359,523.20 = 622,201.68/x
  3. Step 3: Cross multiply
    985,008.60x = 1,359,523.20 × 622,201.68
  4. Step 4: Simplify right side
    985,008.60x = 845,897,619,038.98
  5. Step 5: Solve for x
    x = 845,897,619,038.98/985,008.60
  6. Step 6: Final answer
    x = 858,771.81

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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.