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Finding the Fourth Proportional to 572,708.07, 858,791.16 and 212,630.67

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Solution

The fourth proportional to 572,708.07, 858,791.16 and 212,630.67 is: 318,845.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,708.07 : 858,791.16 = 212,630.67 : x
  2. Step 2: Convert to fraction form
    572,708.07/858,791.16 = 212,630.67/x
  3. Step 3: Cross multiply
    572,708.07x = 858,791.16 × 212,630.67
  4. Step 4: Simplify right side
    572,708.07x = 182,605,339,740.88
  5. Step 5: Solve for x
    x = 182,605,339,740.88/572,708.07
  6. Step 6: Final answer
    x = 318,845.41

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1.5x scale

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.