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Finding the Fourth Proportional to 545,980.26, 819,087.03 and 191,005.86

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Solution

The fourth proportional to 545,980.26, 819,087.03 and 191,005.86 is: 286,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,980.26 : 819,087.03 = 191,005.86 : x
  2. Step 2: Convert to fraction form
    545,980.26/819,087.03 = 191,005.86/x
  3. Step 3: Cross multiply
    545,980.26x = 819,087.03 × 191,005.86
  4. Step 4: Simplify right side
    545,980.26x = 156,450,422,580.00
  5. Step 5: Solve for x
    x = 156,450,422,580.00/545,980.26
  6. Step 6: Final answer
    x = 286,549.60

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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.