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Finding the Fourth Proportional to 353,928.99, 488,429.48 and 192,783.66

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Solution

The fourth proportional to 353,928.99, 488,429.48 and 192,783.66 is: 266,045.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,928.99 : 488,429.48 = 192,783.66 : x
  2. Step 2: Convert to fraction form
    353,928.99/488,429.48 = 192,783.66/x
  3. Step 3: Cross multiply
    353,928.99x = 488,429.48 × 192,783.66
  4. Step 4: Simplify right side
    353,928.99x = 94,161,222,806.30
  5. Step 5: Solve for x
    x = 94,161,222,806.30/353,928.99
  6. Step 6: Final answer
    x = 266,045.52

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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.