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Finding the Fourth Proportional to 407,544.59, 610,521.64 and 266,876.75

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Solution

The fourth proportional to 407,544.59, 610,521.64 and 266,876.75 is: 399,794.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,544.59 : 610,521.64 = 266,876.75 : x
  2. Step 2: Convert to fraction form
    407,544.59/610,521.64 = 266,876.75/x
  3. Step 3: Cross multiply
    407,544.59x = 610,521.64 × 266,876.75
  4. Step 4: Simplify right side
    407,544.59x = 162,934,031,087.87
  5. Step 5: Solve for x
    x = 162,934,031,087.87/407,544.59
  6. Step 6: Final answer
    x = 399,794.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.