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Finding the Fourth Proportional to 656,391.34, 905,797.66 and 362,052.72

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Solution

The fourth proportional to 656,391.34, 905,797.66 and 362,052.72 is: 499,620.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,391.34 : 905,797.66 = 362,052.72 : x
  2. Step 2: Convert to fraction form
    656,391.34/905,797.66 = 362,052.72/x
  3. Step 3: Cross multiply
    656,391.34x = 905,797.66 × 362,052.72
  4. Step 4: Simplify right side
    656,391.34x = 327,946,509,064.25
  5. Step 5: Solve for x
    x = 327,946,509,064.25/656,391.34
  6. Step 6: Final answer
    x = 499,620.41

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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.