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Finding the Fourth Proportional to 439,219.50, 606,122.91 and 238,015.50

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Solution

The fourth proportional to 439,219.50, 606,122.91 and 238,015.50 is: 328,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,219.50 : 606,122.91 = 238,015.50 : x
  2. Step 2: Convert to fraction form
    439,219.50/606,122.91 = 238,015.50/x
  3. Step 3: Cross multiply
    439,219.50x = 606,122.91 × 238,015.50
  4. Step 4: Simplify right side
    439,219.50x = 144,266,647,485.11
  5. Step 5: Solve for x
    x = 144,266,647,485.11/439,219.50
  6. Step 6: Final answer
    x = 328,461.39

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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.