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Finding the Fourth Proportional to 394,984.92, 589,440.06 and 352,994.52

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Solution

The fourth proportional to 394,984.92, 589,440.06 and 352,994.52 is: 526,777.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,984.92 : 589,440.06 = 352,994.52 : x
  2. Step 2: Convert to fraction form
    394,984.92/589,440.06 = 352,994.52/x
  3. Step 3: Cross multiply
    394,984.92x = 589,440.06 × 352,994.52
  4. Step 4: Simplify right side
    394,984.92x = 208,069,111,048.47
  5. Step 5: Solve for x
    x = 208,069,111,048.47/394,984.92
  6. Step 6: Final answer
    x = 526,777.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.