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Finding the Fourth Proportional to 572,090.43, 858,412.13 and 235,379.55

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Solution

The fourth proportional to 572,090.43, 858,412.13 and 235,379.55 is: 353,183.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,090.43 : 858,412.13 = 235,379.55 : x
  2. Step 2: Convert to fraction form
    572,090.43/858,412.13 = 235,379.55/x
  3. Step 3: Cross multiply
    572,090.43x = 858,412.13 × 235,379.55
  4. Step 4: Simplify right side
    572,090.43x = 202,052,659,697.04
  5. Step 5: Solve for x
    x = 202,052,659,697.04/572,090.43
  6. Step 6: Final answer
    x = 353,183.08

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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.