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Finding the Fourth Proportional to 366,916.15, 550,374.23 and 260,627.95

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Solution

The fourth proportional to 366,916.15, 550,374.23 and 260,627.95 is: 390,941.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,916.15 : 550,374.23 = 260,627.95 : x
  2. Step 2: Convert to fraction form
    366,916.15/550,374.23 = 260,627.95/x
  3. Step 3: Cross multiply
    366,916.15x = 550,374.23 × 260,627.95
  4. Step 4: Simplify right side
    366,916.15x = 143,442,907,297.73
  5. Step 5: Solve for x
    x = 143,442,907,297.73/366,916.15
  6. Step 6: Final answer
    x = 390,941.93

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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.