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Finding the Fourth Proportional to 447,590.71, 671,379.47 and 110,631.39

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Solution

The fourth proportional to 447,590.71, 671,379.47 and 110,631.39 is: 165,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,590.71 : 671,379.47 = 110,631.39 : x
  2. Step 2: Convert to fraction form
    447,590.71/671,379.47 = 110,631.39/x
  3. Step 3: Cross multiply
    447,590.71x = 671,379.47 × 110,631.39
  4. Step 4: Simplify right side
    447,590.71x = 74,275,641,327.60
  5. Step 5: Solve for x
    x = 74,275,641,327.60/447,590.71
  6. Step 6: Final answer
    x = 165,945.45

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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.