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Finding the Fourth Proportional to 395,052.39, 545,179.32 and 223,004.73

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Solution

The fourth proportional to 395,052.39, 545,179.32 and 223,004.73 is: 307,750.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,052.39 : 545,179.32 = 223,004.73 : x
  2. Step 2: Convert to fraction form
    395,052.39/545,179.32 = 223,004.73/x
  3. Step 3: Cross multiply
    395,052.39x = 545,179.32 × 223,004.73
  4. Step 4: Simplify right side
    395,052.39x = 121,577,567,058.18
  5. Step 5: Solve for x
    x = 121,577,567,058.18/395,052.39
  6. Step 6: Final answer
    x = 307,750.49

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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.