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Finding the Fourth Proportional to 659,237.46, 988,894.80 and 254,431.86

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Solution

The fourth proportional to 659,237.46, 988,894.80 and 254,431.86 is: 381,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,237.46 : 988,894.80 = 254,431.86 : x
  2. Step 2: Convert to fraction form
    659,237.46/988,894.80 = 254,431.86/x
  3. Step 3: Cross multiply
    659,237.46x = 988,894.80 × 254,431.86
  4. Step 4: Simplify right side
    659,237.46x = 251,606,343,308.33
  5. Step 5: Solve for x
    x = 251,606,343,308.33/659,237.46
  6. Step 6: Final answer
    x = 381,662.69

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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.