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Finding the Fourth Proportional to 496,484.24, 685,113.59 and 281,658.87

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Solution

The fourth proportional to 496,484.24, 685,113.59 and 281,658.87 is: 388,669.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,484.24 : 685,113.59 = 281,658.87 : x
  2. Step 2: Convert to fraction form
    496,484.24/685,113.59 = 281,658.87/x
  3. Step 3: Cross multiply
    496,484.24x = 685,113.59 × 281,658.87
  4. Step 4: Simplify right side
    496,484.24x = 192,968,320,285.19
  5. Step 5: Solve for x
    x = 192,968,320,285.19/496,484.24
  6. Step 6: Final answer
    x = 388,669.58

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1.5x scale

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.