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Finding the Fourth Proportional to 448,647.40, 619,140.90 and 244,699.48

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Solution

The fourth proportional to 448,647.40, 619,140.90 and 244,699.48 is: 337,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,647.40 : 619,140.90 = 244,699.48 : x
  2. Step 2: Convert to fraction form
    448,647.40/619,140.90 = 244,699.48/x
  3. Step 3: Cross multiply
    448,647.40x = 619,140.90 × 244,699.48
  4. Step 4: Simplify right side
    448,647.40x = 151,503,456,276.73
  5. Step 5: Solve for x
    x = 151,503,456,276.73/448,647.40
  6. Step 6: Final answer
    x = 337,689.37

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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.