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Finding the Fourth Proportional to 344,145.70, 474,728.61 and 216,599.86

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Solution

The fourth proportional to 344,145.70, 474,728.61 and 216,599.86 is: 298,786.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,145.70 : 474,728.61 = 216,599.86 : x
  2. Step 2: Convert to fraction form
    344,145.70/474,728.61 = 216,599.86/x
  3. Step 3: Cross multiply
    344,145.70x = 474,728.61 × 216,599.86
  4. Step 4: Simplify right side
    344,145.70x = 102,826,150,464.00
  5. Step 5: Solve for x
    x = 102,826,150,464.00/344,145.70
  6. Step 6: Final answer
    x = 298,786.68

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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.