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Finding the Fourth Proportional to 548,522.44, 757,031.07 and 306,818.44

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Solution

The fourth proportional to 548,522.44, 757,031.07 and 306,818.44 is: 423,448.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,522.44 : 757,031.07 = 306,818.44 : x
  2. Step 2: Convert to fraction form
    548,522.44/757,031.07 = 306,818.44/x
  3. Step 3: Cross multiply
    548,522.44x = 757,031.07 × 306,818.44
  4. Step 4: Simplify right side
    548,522.44x = 232,271,091,928.93
  5. Step 5: Solve for x
    x = 232,271,091,928.93/548,522.44
  6. Step 6: Final answer
    x = 423,448.66

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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.