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Finding the Fourth Proportional to 541,689.18, 812,604.96 and 186,607.86

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Solution

The fourth proportional to 541,689.18, 812,604.96 and 186,607.86 is: 279,936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,689.18 : 812,604.96 = 186,607.86 : x
  2. Step 2: Convert to fraction form
    541,689.18/812,604.96 = 186,607.86/x
  3. Step 3: Cross multiply
    541,689.18x = 812,604.96 × 186,607.86
  4. Step 4: Simplify right side
    541,689.18x = 151,638,472,610.99
  5. Step 5: Solve for x
    x = 151,638,472,610.99/541,689.18
  6. Step 6: Final answer
    x = 279,936.31

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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.