Home / 543,384.20-815,076.30-341,305.40

Finding the Fourth Proportional to 543,384.20, 815,076.30 and 341,305.40

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Solution

The fourth proportional to 543,384.20, 815,076.30 and 341,305.40 is: 511,958.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,384.20 : 815,076.30 = 341,305.40 : x
  2. Step 2: Convert to fraction form
    543,384.20/815,076.30 = 341,305.40/x
  3. Step 3: Cross multiply
    543,384.20x = 815,076.30 × 341,305.40
  4. Step 4: Simplify right side
    543,384.20x = 278,189,942,602.02
  5. Step 5: Solve for x
    x = 278,189,942,602.02/543,384.20
  6. Step 6: Final answer
    x = 511,958.10

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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.