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Finding the Fourth Proportional to 911,862.30, 1,367,793.45 and 734,715.30

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Solution

The fourth proportional to 911,862.30, 1,367,793.45 and 734,715.30 is: 1,102,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,862.30 : 1,367,793.45 = 734,715.30 : x
  2. Step 2: Convert to fraction form
    911,862.30/1,367,793.45 = 734,715.30/x
  3. Step 3: Cross multiply
    911,862.30x = 1,367,793.45 × 734,715.30
  4. Step 4: Simplify right side
    911,862.30x = 1,004,938,774,954.79
  5. Step 5: Solve for x
    x = 1,004,938,774,954.79/911,862.30
  6. Step 6: Final answer
    x = 1,102,072.95

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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.