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Finding the Fourth Proportional to 572,076.84, 789,466.04 and 317,469.00

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Solution

The fourth proportional to 572,076.84, 789,466.04 and 317,469.00 is: 438,107.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,076.84 : 789,466.04 = 317,469.00 : x
  2. Step 2: Convert to fraction form
    572,076.84/789,466.04 = 317,469.00/x
  3. Step 3: Cross multiply
    572,076.84x = 789,466.04 × 317,469.00
  4. Step 4: Simplify right side
    572,076.84x = 250,630,998,602.19
  5. Step 5: Solve for x
    x = 250,630,998,602.19/572,076.84
  6. Step 6: Final answer
    x = 438,107.23

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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.