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Finding the Fourth Proportional to 353,912.95, 488,395.74 and 192,767.50

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Solution

The fourth proportional to 353,912.95, 488,395.74 and 192,767.50 is: 266,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,912.95 : 488,395.74 = 192,767.50 : x
  2. Step 2: Convert to fraction form
    353,912.95/488,395.74 = 192,767.50/x
  3. Step 3: Cross multiply
    353,912.95x = 488,395.74 × 192,767.50
  4. Step 4: Simplify right side
    353,912.95x = 94,146,825,810.45
  5. Step 5: Solve for x
    x = 94,146,825,810.45/353,912.95
  6. Step 6: Final answer
    x = 266,016.90

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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.