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Finding the Fourth Proportional to 298,787.79, 447,390.72 and 246,431.01

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Solution

The fourth proportional to 298,787.79, 447,390.72 and 246,431.01 is: 368,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,787.79 : 447,390.72 = 246,431.01 : x
  2. Step 2: Convert to fraction form
    298,787.79/447,390.72 = 246,431.01/x
  3. Step 3: Cross multiply
    298,787.79x = 447,390.72 × 246,431.01
  4. Step 4: Simplify right side
    298,787.79x = 110,250,946,994.23
  5. Step 5: Solve for x
    x = 110,250,946,994.23/298,787.79
  6. Step 6: Final answer
    x = 368,994.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.