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Finding the Fourth Proportional to 671,238.54, 926,326.26 and 365,331.51

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Solution

The fourth proportional to 671,238.54, 926,326.26 and 365,331.51 is: 504,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,238.54 : 926,326.26 = 365,331.51 : x
  2. Step 2: Convert to fraction form
    671,238.54/926,326.26 = 365,331.51/x
  3. Step 3: Cross multiply
    671,238.54x = 926,326.26 × 365,331.51
  4. Step 4: Simplify right side
    671,238.54x = 338,416,171,318.45
  5. Step 5: Solve for x
    x = 338,416,171,318.45/671,238.54
  6. Step 6: Final answer
    x = 504,166.78

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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.