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Finding the Fourth Proportional to 556,926.84, 768,576.20 and 327,442.50

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Solution

The fourth proportional to 556,926.84, 768,576.20 and 327,442.50 is: 451,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,926.84 : 768,576.20 = 327,442.50 : x
  2. Step 2: Convert to fraction form
    556,926.84/768,576.20 = 327,442.50/x
  3. Step 3: Cross multiply
    556,926.84x = 768,576.20 × 327,442.50
  4. Step 4: Simplify right side
    556,926.84x = 251,664,510,731.29
  5. Step 5: Solve for x
    x = 251,664,510,731.29/556,926.84
  6. Step 6: Final answer
    x = 451,880.74

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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.