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Finding the Fourth Proportional to 545,978.26, 819,084.03 and 191,003.86

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Solution

The fourth proportional to 545,978.26, 819,084.03 and 191,003.86 is: 286,546.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,978.26 : 819,084.03 = 191,003.86 : x
  2. Step 2: Convert to fraction form
    545,978.26/819,084.03 = 191,003.86/x
  3. Step 3: Cross multiply
    545,978.26x = 819,084.03 × 191,003.86
  4. Step 4: Simplify right side
    545,978.26x = 156,448,211,394.36
  5. Step 5: Solve for x
    x = 156,448,211,394.36/545,978.26
  6. Step 6: Final answer
    x = 286,546.60

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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.