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Finding the Fourth Proportional to 407,765.38, 562,700.66 and 226,488.94

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Solution

The fourth proportional to 407,765.38, 562,700.66 and 226,488.94 is: 312,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,765.38 : 562,700.66 = 226,488.94 : x
  2. Step 2: Convert to fraction form
    407,765.38/562,700.66 = 226,488.94/x
  3. Step 3: Cross multiply
    407,765.38x = 562,700.66 × 226,488.94
  4. Step 4: Simplify right side
    407,765.38x = 127,445,476,183.80
  5. Step 5: Solve for x
    x = 127,445,476,183.80/407,765.38
  6. Step 6: Final answer
    x = 312,546.09

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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.