Home / 340,395.40-469,704.90-197,135.56

Finding the Fourth Proportional to 340,395.40, 469,704.90 and 197,135.56

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Solution

The fourth proportional to 340,395.40, 469,704.90 and 197,135.56 is: 272,023.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,395.40 : 469,704.90 = 197,135.56 : x
  2. Step 2: Convert to fraction form
    340,395.40/469,704.90 = 197,135.56/x
  3. Step 3: Cross multiply
    340,395.40x = 469,704.90 × 197,135.56
  4. Step 4: Simplify right side
    340,395.40x = 92,595,538,496.24
  5. Step 5: Solve for x
    x = 92,595,538,496.24/340,395.40
  6. Step 6: Final answer
    x = 272,023.47

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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.