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Finding the Fourth Proportional to 448,689.90, 619,194 and 244,745.21

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Solution

The fourth proportional to 448,689.90, 619,194 and 244,745.21 is: 337,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,689.90 : 619,194 = 244,745.21 : x
  2. Step 2: Convert to fraction form
    448,689.90/619,194 = 244,745.21/x
  3. Step 3: Cross multiply
    448,689.90x = 619,194 × 244,745.21
  4. Step 4: Simplify right side
    448,689.90x = 151,544,762,464.77
  5. Step 5: Solve for x
    x = 151,544,762,464.77/448,689.90
  6. Step 6: Final answer
    x = 337,749.44

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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.