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Finding the Fourth Proportional to 354,353.94, 488,999.61 and 193,212.14

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Solution

The fourth proportional to 354,353.94, 488,999.61 and 193,212.14 is: 266,627.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,353.94 : 488,999.61 = 193,212.14 : x
  2. Step 2: Convert to fraction form
    354,353.94/488,999.61 = 193,212.14/x
  3. Step 3: Cross multiply
    354,353.94x = 488,999.61 × 193,212.14
  4. Step 4: Simplify right side
    354,353.94x = 94,480,658,662.27
  5. Step 5: Solve for x
    x = 94,480,658,662.27/354,353.94
  6. Step 6: Final answer
    x = 266,627.93

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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.