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Finding the Fourth Proportional to 448,754.98, 619,420.03 and 276,726.93

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Solution

The fourth proportional to 448,754.98, 619,420.03 and 276,726.93 is: 381,968.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,754.98 : 619,420.03 = 276,726.93 : x
  2. Step 2: Convert to fraction form
    448,754.98/619,420.03 = 276,726.93/x
  3. Step 3: Cross multiply
    448,754.98x = 619,420.03 × 276,726.93
  4. Step 4: Simplify right side
    448,754.98x = 171,410,198,801.67
  5. Step 5: Solve for x
    x = 171,410,198,801.67/448,754.98
  6. Step 6: Final answer
    x = 381,968.35

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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.