Home / 814,101.60-1,220,933.70-281,785.80

Finding the Fourth Proportional to 814,101.60, 1,220,933.70 and 281,785.80

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Solution

The fourth proportional to 814,101.60, 1,220,933.70 and 281,785.80 is: 422,603.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,101.60 : 1,220,933.70 = 281,785.80 : x
  2. Step 2: Convert to fraction form
    814,101.60/1,220,933.70 = 281,785.80/x
  3. Step 3: Cross multiply
    814,101.60x = 1,220,933.70 × 281,785.80
  4. Step 4: Simplify right side
    814,101.60x = 344,041,779,401.46
  5. Step 5: Solve for x
    x = 344,041,779,401.46/814,101.60
  6. Step 6: Final answer
    x = 422,603.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.