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Finding the Fourth Proportional to 366,807.06, 506,072.74 and 221,558.57

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Solution

The fourth proportional to 366,807.06, 506,072.74 and 221,558.57 is: 305,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,807.06 : 506,072.74 = 221,558.57 : x
  2. Step 2: Convert to fraction form
    366,807.06/506,072.74 = 221,558.57/x
  3. Step 3: Cross multiply
    366,807.06x = 506,072.74 × 221,558.57
  4. Step 4: Simplify right side
    366,807.06x = 112,124,750,138.71
  5. Step 5: Solve for x
    x = 112,124,750,138.71/366,807.06
  6. Step 6: Final answer
    x = 305,677.73

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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.