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Finding the Fourth Proportional to 572,399.42, 858,416.81 and 188,059.04

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Solution

The fourth proportional to 572,399.42, 858,416.81 and 188,059.04 is: 282,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,399.42 : 858,416.81 = 188,059.04 : x
  2. Step 2: Convert to fraction form
    572,399.42/858,416.81 = 188,059.04/x
  3. Step 3: Cross multiply
    572,399.42x = 858,416.81 × 188,059.04
  4. Step 4: Simplify right side
    572,399.42x = 161,433,035,976.08
  5. Step 5: Solve for x
    x = 161,433,035,976.08/572,399.42
  6. Step 6: Final answer
    x = 282,028.65

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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.