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Finding the Fourth Proportional to 496,597.56, 685,320.18 and 281,746.68

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Solution

The fourth proportional to 496,597.56, 685,320.18 and 281,746.68 is: 388,819.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,597.56 : 685,320.18 = 281,746.68 : x
  2. Step 2: Convert to fraction form
    496,597.56/685,320.18 = 281,746.68/x
  3. Step 3: Cross multiply
    496,597.56x = 685,320.18 × 281,746.68
  4. Step 4: Simplify right side
    496,597.56x = 193,086,685,452.00
  5. Step 5: Solve for x
    x = 193,086,685,452.00/496,597.56
  6. Step 6: Final answer
    x = 388,819.24

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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.