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Finding the Fourth Proportional to 353,647.09, 488,039.21 and 192,506.77

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Solution

The fourth proportional to 353,647.09, 488,039.21 and 192,506.77 is: 265,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,647.09 : 488,039.21 = 192,506.77 : x
  2. Step 2: Convert to fraction form
    353,647.09/488,039.21 = 192,506.77/x
  3. Step 3: Cross multiply
    353,647.09x = 488,039.21 × 192,506.77
  4. Step 4: Simplify right side
    353,647.09x = 93,950,851,950.45
  5. Step 5: Solve for x
    x = 93,950,851,950.45/353,647.09
  6. Step 6: Final answer
    x = 265,662.73

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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.