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Finding the Fourth Proportional to 366,912.15, 550,368.23 and 260,623.95

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Solution

The fourth proportional to 366,912.15, 550,368.23 and 260,623.95 is: 390,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,912.15 : 550,368.23 = 260,623.95 : x
  2. Step 2: Convert to fraction form
    366,912.15/550,368.23 = 260,623.95/x
  3. Step 3: Cross multiply
    366,912.15x = 550,368.23 × 260,623.95
  4. Step 4: Simplify right side
    366,912.15x = 143,439,140,753.99
  5. Step 5: Solve for x
    x = 143,439,140,753.99/366,912.15
  6. Step 6: Final answer
    x = 390,935.93

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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.