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Finding the Fourth Proportional to 394,574.95, 544,518.66 and 233,425.86

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Solution

The fourth proportional to 394,574.95, 544,518.66 and 233,425.86 is: 322,130.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,574.95 : 544,518.66 = 233,425.86 : x
  2. Step 2: Convert to fraction form
    394,574.95/544,518.66 = 233,425.86/x
  3. Step 3: Cross multiply
    394,574.95x = 544,518.66 × 233,425.86
  4. Step 4: Simplify right side
    394,574.95x = 127,104,736,496.55
  5. Step 5: Solve for x
    x = 127,104,736,496.55/394,574.95
  6. Step 6: Final answer
    x = 322,130.78

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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.