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Finding the Fourth Proportional to 574,299.48, 793,229.76 and 421,116.60

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Solution

The fourth proportional to 574,299.48, 793,229.76 and 421,116.60 is: 581,651.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,299.48 : 793,229.76 = 421,116.60 : x
  2. Step 2: Convert to fraction form
    574,299.48/793,229.76 = 421,116.60/x
  3. Step 3: Cross multiply
    574,299.48x = 793,229.76 × 421,116.60
  4. Step 4: Simplify right side
    574,299.48x = 334,042,219,550.02
  5. Step 5: Solve for x
    x = 334,042,219,550.02/574,299.48
  6. Step 6: Final answer
    x = 581,651.61

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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.