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Finding the Fourth Proportional to 394,465.95, 544,361.72 and 224,728.83

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Solution

The fourth proportional to 394,465.95, 544,361.72 and 224,728.83 is: 310,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,465.95 : 544,361.72 = 224,728.83 : x
  2. Step 2: Convert to fraction form
    394,465.95/544,361.72 = 224,728.83/x
  3. Step 3: Cross multiply
    394,465.95x = 544,361.72 × 224,728.83
  4. Step 4: Simplify right side
    394,465.95x = 122,333,771,308.74
  5. Step 5: Solve for x
    x = 122,333,771,308.74/394,465.95
  6. Step 6: Final answer
    x = 310,125.05

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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.