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Finding the Fourth Proportional to 496,501.01, 685,151.20 and 281,636.46

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Solution

The fourth proportional to 496,501.01, 685,151.20 and 281,636.46 is: 388,646.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,501.01 : 685,151.20 = 281,636.46 : x
  2. Step 2: Convert to fraction form
    496,501.01/685,151.20 = 281,636.46/x
  3. Step 3: Cross multiply
    496,501.01x = 685,151.20 × 281,636.46
  4. Step 4: Simplify right side
    496,501.01x = 192,963,553,698.81
  5. Step 5: Solve for x
    x = 192,963,553,698.81/496,501.01
  6. Step 6: Final answer
    x = 388,646.85

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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.