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Finding the Fourth Proportional to 481,045.10, 663,912.32 and 277,056.32

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Solution

The fourth proportional to 481,045.10, 663,912.32 and 277,056.32 is: 382,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,045.10 : 663,912.32 = 277,056.32 : x
  2. Step 2: Convert to fraction form
    481,045.10/663,912.32 = 277,056.32/x
  3. Step 3: Cross multiply
    481,045.10x = 663,912.32 × 277,056.32
  4. Step 4: Simplify right side
    481,045.10x = 183,941,099,477.02
  5. Step 5: Solve for x
    x = 183,941,099,477.02/481,045.10
  6. Step 6: Final answer
    x = 382,378.08

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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.