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Finding the Fourth Proportional to 339,403.47, 468,379.86 and 186,444.77

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Solution

The fourth proportional to 339,403.47, 468,379.86 and 186,444.77 is: 257,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,403.47 : 468,379.86 = 186,444.77 : x
  2. Step 2: Convert to fraction form
    339,403.47/468,379.86 = 186,444.77/x
  3. Step 3: Cross multiply
    339,403.47x = 468,379.86 × 186,444.77
  4. Step 4: Simplify right side
    339,403.47x = 87,326,972,928.43
  5. Step 5: Solve for x
    x = 87,326,972,928.43/339,403.47
  6. Step 6: Final answer
    x = 257,295.46

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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.