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Finding the Fourth Proportional to 395,638.60, 545,981.57 and 232,263.13

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Solution

The fourth proportional to 395,638.60, 545,981.57 and 232,263.13 is: 320,523.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,638.60 : 545,981.57 = 232,263.13 : x
  2. Step 2: Convert to fraction form
    395,638.60/545,981.57 = 232,263.13/x
  3. Step 3: Cross multiply
    395,638.60x = 545,981.57 × 232,263.13
  4. Step 4: Simplify right side
    395,638.60x = 126,811,387,005.56
  5. Step 5: Solve for x
    x = 126,811,387,005.56/395,638.60
  6. Step 6: Final answer
    x = 320,523.30

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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.