Home / 816,057.20-1,224,085.80-343,276.40

Finding the Fourth Proportional to 816,057.20, 1,224,085.80 and 343,276.40

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Solution

The fourth proportional to 816,057.20, 1,224,085.80 and 343,276.40 is: 514,914.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,057.20 : 1,224,085.80 = 343,276.40 : x
  2. Step 2: Convert to fraction form
    816,057.20/1,224,085.80 = 343,276.40/x
  3. Step 3: Cross multiply
    816,057.20x = 1,224,085.80 × 343,276.40
  4. Step 4: Simplify right side
    816,057.20x = 420,199,766,715.12
  5. Step 5: Solve for x
    x = 420,199,766,715.12/816,057.20
  6. Step 6: Final answer
    x = 514,914.60

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Similar ratio
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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.