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Finding the Fourth Proportional to 548,564.34, 757,014.93 and 306,845.94

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Solution

The fourth proportional to 548,564.34, 757,014.93 and 306,845.94 is: 423,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,564.34 : 757,014.93 = 306,845.94 : x
  2. Step 2: Convert to fraction form
    548,564.34/757,014.93 = 306,845.94/x
  3. Step 3: Cross multiply
    548,564.34x = 757,014.93 × 306,845.94
  4. Step 4: Simplify right side
    548,564.34x = 232,286,957,789.88
  5. Step 5: Solve for x
    x = 232,286,957,789.88/548,564.34
  6. Step 6: Final answer
    x = 423,445.24

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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.