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Finding the Fourth Proportional to 395,648.04, 545,994.36 and 214,361.16

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Solution

The fourth proportional to 395,648.04, 545,994.36 and 214,361.16 is: 295,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,648.04 : 545,994.36 = 214,361.16 : x
  2. Step 2: Convert to fraction form
    395,648.04/545,994.36 = 214,361.16/x
  3. Step 3: Cross multiply
    395,648.04x = 545,994.36 × 214,361.16
  4. Step 4: Simplify right side
    395,648.04x = 117,039,984,363.06
  5. Step 5: Solve for x
    x = 117,039,984,363.06/395,648.04
  6. Step 6: Final answer
    x = 295,818.44

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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.