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Finding the Fourth Proportional to 450,093.88, 621,126.12 and 246,143.98

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Solution

The fourth proportional to 450,093.88, 621,126.12 and 246,143.98 is: 339,676.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,093.88 : 621,126.12 = 246,143.98 : x
  2. Step 2: Convert to fraction form
    450,093.88/621,126.12 = 246,143.98/x
  3. Step 3: Cross multiply
    450,093.88x = 621,126.12 × 246,143.98
  4. Step 4: Simplify right side
    450,093.88x = 152,886,455,258.76
  5. Step 5: Solve for x
    x = 152,886,455,258.76/450,093.88
  6. Step 6: Final answer
    x = 339,676.81

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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.