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Finding the Fourth Proportional to 572,736.33, 790,329.89 and 331,034.56

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Solution

The fourth proportional to 572,736.33, 790,329.89 and 331,034.56 is: 456,800.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,736.33 : 790,329.89 = 331,034.56 : x
  2. Step 2: Convert to fraction form
    572,736.33/790,329.89 = 331,034.56/x
  3. Step 3: Cross multiply
    572,736.33x = 790,329.89 × 331,034.56
  4. Step 4: Simplify right side
    572,736.33x = 261,626,506,242.76
  5. Step 5: Solve for x
    x = 261,626,506,242.76/572,736.33
  6. Step 6: Final answer
    x = 456,800.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.