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Finding the Fourth Proportional to 545,989.39, 819,100.73 and 191,014.99

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Solution

The fourth proportional to 545,989.39, 819,100.73 and 191,014.99 is: 286,563.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,989.39 : 819,100.73 = 191,014.99 : x
  2. Step 2: Convert to fraction form
    545,989.39/819,100.73 = 191,014.99/x
  3. Step 3: Cross multiply
    545,989.39x = 819,100.73 × 191,014.99
  4. Step 4: Simplify right side
    545,989.39x = 156,460,512,699.36
  5. Step 5: Solve for x
    x = 156,460,512,699.36/545,989.39
  6. Step 6: Final answer
    x = 286,563.29

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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.