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Finding the Fourth Proportional to 461,528.08, 691,880.64 and 248,410.48

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Solution

The fourth proportional to 461,528.08, 691,880.64 and 248,410.48 is: 372,394.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,528.08 : 691,880.64 = 248,410.48 : x
  2. Step 2: Convert to fraction form
    461,528.08/691,880.64 = 248,410.48/x
  3. Step 3: Cross multiply
    461,528.08x = 691,880.64 × 248,410.48
  4. Step 4: Simplify right side
    461,528.08x = 171,870,401,885.11
  5. Step 5: Solve for x
    x = 171,870,401,885.11/461,528.08
  6. Step 6: Final answer
    x = 372,394.25

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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.