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Finding the Fourth Proportional to 528,508, 792,733.64 and 186,927.76

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Solution

The fourth proportional to 528,508, 792,733.64 and 186,927.76 is: 280,381.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,508 : 792,733.64 = 186,927.76 : x
  2. Step 2: Convert to fraction form
    528,508/792,733.64 = 186,927.76/x
  3. Step 3: Cross multiply
    528,508x = 792,733.64 × 186,927.76
  4. Step 4: Simplify right side
    528,508x = 148,183,923,601.85
  5. Step 5: Solve for x
    x = 148,183,923,601.85/528,508
  6. Step 6: Final answer
    x = 280,381.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.