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Finding the Fourth Proportional to 481,056.39, 663,928.22 and 277,068.07

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Solution

The fourth proportional to 481,056.39, 663,928.22 and 277,068.07 is: 382,394.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,056.39 : 663,928.22 = 277,068.07 : x
  2. Step 2: Convert to fraction form
    481,056.39/663,928.22 = 277,068.07/x
  3. Step 3: Cross multiply
    481,056.39x = 663,928.22 × 277,068.07
  4. Step 4: Simplify right side
    481,056.39x = 183,953,310,533.94
  5. Step 5: Solve for x
    x = 183,953,310,533.94/481,056.39
  6. Step 6: Final answer
    x = 382,394.49

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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.