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Finding the Fourth Proportional to 451,964.89, 623,709.85 and 248,019.24

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Solution

The fourth proportional to 451,964.89, 623,709.85 and 248,019.24 is: 342,265.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,964.89 : 623,709.85 = 248,019.24 : x
  2. Step 2: Convert to fraction form
    451,964.89/623,709.85 = 248,019.24/x
  3. Step 3: Cross multiply
    451,964.89x = 623,709.85 × 248,019.24
  4. Step 4: Simplify right side
    451,964.89x = 154,692,042,977.51
  5. Step 5: Solve for x
    x = 154,692,042,977.51/451,964.89
  6. Step 6: Final answer
    x = 342,265.62

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1.5x scale

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.