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Finding the Fourth Proportional to 483,280.56, 666,695.76 and 340,120.08

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Solution

The fourth proportional to 483,280.56, 666,695.76 and 340,120.08 is: 469,202.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,280.56 : 666,695.76 = 340,120.08 : x
  2. Step 2: Convert to fraction form
    483,280.56/666,695.76 = 340,120.08/x
  3. Step 3: Cross multiply
    483,280.56x = 666,695.76 × 340,120.08
  4. Step 4: Simplify right side
    483,280.56x = 226,756,615,226.86
  5. Step 5: Solve for x
    x = 226,756,615,226.86/483,280.56
  6. Step 6: Final answer
    x = 469,202.85

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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.