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Finding the Fourth Proportional to 367,628.40, 551,442.60 and 308,579.40

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Solution

The fourth proportional to 367,628.40, 551,442.60 and 308,579.40 is: 462,869.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,628.40 : 551,442.60 = 308,579.40 : x
  2. Step 2: Convert to fraction form
    367,628.40/551,442.60 = 308,579.40/x
  3. Step 3: Cross multiply
    367,628.40x = 551,442.60 × 308,579.40
  4. Step 4: Simplify right side
    367,628.40x = 170,163,826,642.44
  5. Step 5: Solve for x
    x = 170,163,826,642.44/367,628.40
  6. Step 6: Final answer
    x = 462,869.10

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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.