Home / 816,914.58-1,127,255.70-454,279.80

Finding the Fourth Proportional to 816,914.58, 1,127,255.70 and 454,279.80

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Solution

The fourth proportional to 816,914.58, 1,127,255.70 and 454,279.80 is: 626,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,914.58 : 1,127,255.70 = 454,279.80 : x
  2. Step 2: Convert to fraction form
    816,914.58/1,127,255.70 = 454,279.80/x
  3. Step 3: Cross multiply
    816,914.58x = 1,127,255.70 × 454,279.80
  4. Step 4: Simplify right side
    816,914.58x = 512,089,493,944.86
  5. Step 5: Solve for x
    x = 512,089,493,944.86/816,914.58
  6. Step 6: Final answer
    x = 626,858.07

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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.