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Finding the Fourth Proportional to 353,811.64, 488,260.12 and 192,666.64

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Solution

The fourth proportional to 353,811.64, 488,260.12 and 192,666.64 is: 265,879.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,811.64 : 488,260.12 = 192,666.64 : x
  2. Step 2: Convert to fraction form
    353,811.64/488,260.12 = 192,666.64/x
  3. Step 3: Cross multiply
    353,811.64x = 488,260.12 × 192,666.64
  4. Step 4: Simplify right side
    353,811.64x = 94,071,436,766.40
  5. Step 5: Solve for x
    x = 94,071,436,766.40/353,811.64
  6. Step 6: Final answer
    x = 265,879.99

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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.