Home / 816,096.20-1,224,144.30-343,315.40

Finding the Fourth Proportional to 816,096.20, 1,224,144.30 and 343,315.40

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Solution

The fourth proportional to 816,096.20, 1,224,144.30 and 343,315.40 is: 514,973.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,096.20 : 1,224,144.30 = 343,315.40 : x
  2. Step 2: Convert to fraction form
    816,096.20/1,224,144.30 = 343,315.40/x
  3. Step 3: Cross multiply
    816,096.20x = 1,224,144.30 × 343,315.40
  4. Step 4: Simplify right side
    816,096.20x = 420,267,590,012.22
  5. Step 5: Solve for x
    x = 420,267,590,012.22/816,096.20
  6. Step 6: Final answer
    x = 514,973.10

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Double scale
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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.