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Finding the Fourth Proportional to 338,999.68, 467,625.12 and 211,453.76

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Solution

The fourth proportional to 338,999.68, 467,625.12 and 211,453.76 is: 291,684.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,999.68 : 467,625.12 = 211,453.76 : x
  2. Step 2: Convert to fraction form
    338,999.68/467,625.12 = 211,453.76/x
  3. Step 3: Cross multiply
    338,999.68x = 467,625.12 × 211,453.76
  4. Step 4: Simplify right side
    338,999.68x = 98,881,089,894.45
  5. Step 5: Solve for x
    x = 98,881,089,894.45/338,999.68
  6. Step 6: Final answer
    x = 291,684.91

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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.