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Finding the Fourth Proportional to 545,989.38, 819,100.72 and 191,014.98

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Solution

The fourth proportional to 545,989.38, 819,100.72 and 191,014.98 is: 286,563.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,989.38 : 819,100.72 = 191,014.98 : x
  2. Step 2: Convert to fraction form
    545,989.38/819,100.72 = 191,014.98/x
  3. Step 3: Cross multiply
    545,989.38x = 819,100.72 × 191,014.98
  4. Step 4: Simplify right side
    545,989.38x = 156,460,507,648.79
  5. Step 5: Solve for x
    x = 156,460,507,648.79/545,989.38
  6. Step 6: Final answer
    x = 286,563.28

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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.