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Finding the Fourth Proportional to 366,956.95, 550,435.43 and 209,492.95

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Solution

The fourth proportional to 366,956.95, 550,435.43 and 209,492.95 is: 314,239.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,956.95 : 550,435.43 = 209,492.95 : x
  2. Step 2: Convert to fraction form
    366,956.95/550,435.43 = 209,492.95/x
  3. Step 3: Cross multiply
    366,956.95x = 550,435.43 × 209,492.95
  4. Step 4: Simplify right side
    366,956.95x = 115,312,342,015.22
  5. Step 5: Solve for x
    x = 115,312,342,015.22/366,956.95
  6. Step 6: Final answer
    x = 314,239.43

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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.