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Finding the Fourth Proportional to 572,978.51, 858,933.53 and 193,633.96

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Solution

The fourth proportional to 572,978.51, 858,933.53 and 193,633.96 is: 290,270.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,978.51 : 858,933.53 = 193,633.96 : x
  2. Step 2: Convert to fraction form
    572,978.51/858,933.53 = 193,633.96/x
  3. Step 3: Cross multiply
    572,978.51x = 858,933.53 × 193,633.96
  4. Step 4: Simplify right side
    572,978.51x = 166,318,700,790.68
  5. Step 5: Solve for x
    x = 166,318,700,790.68/572,978.51
  6. Step 6: Final answer
    x = 290,270.40

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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.