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Finding the Fourth Proportional to 317,999.86, 438,847.41 and 174,773.50

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Solution

The fourth proportional to 317,999.86, 438,847.41 and 174,773.50 is: 241,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,999.86 : 438,847.41 = 174,773.50 : x
  2. Step 2: Convert to fraction form
    317,999.86/438,847.41 = 174,773.50/x
  3. Step 3: Cross multiply
    317,999.86x = 438,847.41 × 174,773.50
  4. Step 4: Simplify right side
    317,999.86x = 76,698,897,811.64
  5. Step 5: Solve for x
    x = 76,698,897,811.64/317,999.86
  6. Step 6: Final answer
    x = 241,191.61

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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.