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Finding the Fourth Proportional to 338,400.89, 467,058.91 and 223,685.45

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Solution

The fourth proportional to 338,400.89, 467,058.91 and 223,685.45 is: 308,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,400.89 : 467,058.91 = 223,685.45 : x
  2. Step 2: Convert to fraction form
    338,400.89/467,058.91 = 223,685.45/x
  3. Step 3: Cross multiply
    338,400.89x = 467,058.91 × 223,685.45
  4. Step 4: Simplify right side
    338,400.89x = 104,474,281,736.23
  5. Step 5: Solve for x
    x = 104,474,281,736.23/338,400.89
  6. Step 6: Final answer
    x = 308,729.34

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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.