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Finding the Fourth Proportional to 384,057.20, 576,085.80 and 251,087.60

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Solution

The fourth proportional to 384,057.20, 576,085.80 and 251,087.60 is: 376,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,057.20 : 576,085.80 = 251,087.60 : x
  2. Step 2: Convert to fraction form
    384,057.20/576,085.80 = 251,087.60/x
  3. Step 3: Cross multiply
    384,057.20x = 576,085.80 × 251,087.60
  4. Step 4: Simplify right side
    384,057.20x = 144,648,000,916.08
  5. Step 5: Solve for x
    x = 144,648,000,916.08/384,057.20
  6. Step 6: Final answer
    x = 376,631.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.