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Finding the Fourth Proportional to 496,212.81, 684,929.63 and 281,495.61

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Solution

The fourth proportional to 496,212.81, 684,929.63 and 281,495.61 is: 388,552.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,212.81 : 684,929.63 = 281,495.61 : x
  2. Step 2: Convert to fraction form
    496,212.81/684,929.63 = 281,495.61/x
  3. Step 3: Cross multiply
    496,212.81x = 684,929.63 × 281,495.61
  4. Step 4: Simplify right side
    496,212.81x = 192,804,682,596.45
  5. Step 5: Solve for x
    x = 192,804,682,596.45/496,212.81
  6. Step 6: Final answer
    x = 388,552.41

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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.