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Finding the Fourth Proportional to 417,665.80, 576,379.24 and 226,679.32

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Solution

The fourth proportional to 417,665.80, 576,379.24 and 226,679.32 is: 312,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,665.80 : 576,379.24 = 226,679.32 : x
  2. Step 2: Convert to fraction form
    417,665.80/576,379.24 = 226,679.32/x
  3. Step 3: Cross multiply
    417,665.80x = 576,379.24 × 226,679.32
  4. Step 4: Simplify right side
    417,665.80x = 130,653,254,185.32
  5. Step 5: Solve for x
    x = 130,653,254,185.32/417,665.80
  6. Step 6: Final answer
    x = 312,817.70

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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.