Home / 886,918.60-1,330,572.30-287,777.80

Finding the Fourth Proportional to 886,918.60, 1,330,572.30 and 287,777.80

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Solution

The fourth proportional to 886,918.60, 1,330,572.30 and 287,777.80 is: 431,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,918.60 : 1,330,572.30 = 287,777.80 : x
  2. Step 2: Convert to fraction form
    886,918.60/1,330,572.30 = 287,777.80/x
  3. Step 3: Cross multiply
    886,918.60x = 1,330,572.30 × 287,777.80
  4. Step 4: Simplify right side
    886,918.60x = 382,909,169,234.94
  5. Step 5: Solve for x
    x = 382,909,169,234.94/886,918.60
  6. Step 6: Final answer
    x = 431,729.78

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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.