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Finding the Fourth Proportional to 692,706.24, 1,039,048 and 219,390.72

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Solution

The fourth proportional to 692,706.24, 1,039,048 and 219,390.72 is: 329,082.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,706.24 : 1,039,048 = 219,390.72 : x
  2. Step 2: Convert to fraction form
    692,706.24/1,039,048 = 219,390.72/x
  3. Step 3: Cross multiply
    692,706.24x = 1,039,048 × 219,390.72
  4. Step 4: Simplify right side
    692,706.24x = 227,957,488,834.56
  5. Step 5: Solve for x
    x = 227,957,488,834.56/692,706.24
  6. Step 6: Final answer
    x = 329,082.48

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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.