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Finding the Fourth Proportional to 545,757.22, 753,143.07 and 304,025.50

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Solution

The fourth proportional to 545,757.22, 753,143.07 and 304,025.50 is: 419,554.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,757.22 : 753,143.07 = 304,025.50 : x
  2. Step 2: Convert to fraction form
    545,757.22/753,143.07 = 304,025.50/x
  3. Step 3: Cross multiply
    545,757.22x = 753,143.07 × 304,025.50
  4. Step 4: Simplify right side
    545,757.22x = 228,974,698,428.29
  5. Step 5: Solve for x
    x = 228,974,698,428.29/545,757.22
  6. Step 6: Final answer
    x = 419,554.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.