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Finding the Fourth Proportional to 694,023.53, 957,745.89 and 388,096.40

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Solution

The fourth proportional to 694,023.53, 957,745.89 and 388,096.40 is: 535,569.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,023.53 : 957,745.89 = 388,096.40 : x
  2. Step 2: Convert to fraction form
    694,023.53/957,745.89 = 388,096.40/x
  3. Step 3: Cross multiply
    694,023.53x = 957,745.89 × 388,096.40
  4. Step 4: Simplify right side
    694,023.53x = 371,697,727,235.07
  5. Step 5: Solve for x
    x = 371,697,727,235.07/694,023.53
  6. Step 6: Final answer
    x = 535,569.35

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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.