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Finding the Fourth Proportional to 394,802.15, 544,830.24 and 225,047.21

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Solution

The fourth proportional to 394,802.15, 544,830.24 and 225,047.21 is: 310,567.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,802.15 : 544,830.24 = 225,047.21 : x
  2. Step 2: Convert to fraction form
    394,802.15/544,830.24 = 225,047.21/x
  3. Step 3: Cross multiply
    394,802.15x = 544,830.24 × 225,047.21
  4. Step 4: Simplify right side
    394,802.15x = 122,612,522,711.48
  5. Step 5: Solve for x
    x = 122,612,522,711.48/394,802.15
  6. Step 6: Final answer
    x = 310,567.01

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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.