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Finding the Fourth Proportional to 338,194.20, 507,349.80 and 113,576.40

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Solution

The fourth proportional to 338,194.20, 507,349.80 and 113,576.40 is: 170,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,194.20 : 507,349.80 = 113,576.40 : x
  2. Step 2: Convert to fraction form
    338,194.20/507,349.80 = 113,576.40/x
  3. Step 3: Cross multiply
    338,194.20x = 507,349.80 × 113,576.40
  4. Step 4: Simplify right side
    338,194.20x = 57,622,963,824.72
  5. Step 5: Solve for x
    x = 57,622,963,824.72/338,194.20
  6. Step 6: Final answer
    x = 170,384.25

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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.