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Finding the Fourth Proportional to 354,013.66, 488,537.39 and 192,868.21

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Solution

The fourth proportional to 354,013.66, 488,537.39 and 192,868.21 is: 266,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,013.66 : 488,537.39 = 192,868.21 : x
  2. Step 2: Convert to fraction form
    354,013.66/488,537.39 = 192,868.21/x
  3. Step 3: Cross multiply
    354,013.66x = 488,537.39 × 192,868.21
  4. Step 4: Simplify right side
    354,013.66x = 94,223,331,927.37
  5. Step 5: Solve for x
    x = 94,223,331,927.37/354,013.66
  6. Step 6: Final answer
    x = 266,157.33

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1.5x scale

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.