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Finding the Fourth Proportional to 340,576.74, 469,995.93 and 197,419.86

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Solution

The fourth proportional to 340,576.74, 469,995.93 and 197,419.86 is: 272,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,576.74 : 469,995.93 = 197,419.86 : x
  2. Step 2: Convert to fraction form
    340,576.74/469,995.93 = 197,419.86/x
  3. Step 3: Cross multiply
    340,576.74x = 469,995.93 × 197,419.86
  4. Step 4: Simplify right side
    340,576.74x = 92,786,530,701.17
  5. Step 5: Solve for x
    x = 92,786,530,701.17/340,576.74
  6. Step 6: Final answer
    x = 272,439.42

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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.