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Finding the Fourth Proportional to 572,604.84, 858,640.60 and 212,524.92

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Solution

The fourth proportional to 572,604.84, 858,640.60 and 212,524.92 is: 318,688.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,604.84 : 858,640.60 = 212,524.92 : x
  2. Step 2: Convert to fraction form
    572,604.84/858,640.60 = 212,524.92/x
  3. Step 3: Cross multiply
    572,604.84x = 858,640.60 × 212,524.92
  4. Step 4: Simplify right side
    572,604.84x = 182,482,524,823.75
  5. Step 5: Solve for x
    x = 182,482,524,823.75/572,604.84
  6. Step 6: Final answer
    x = 318,688.41

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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.