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Finding the Fourth Proportional to 528,022.70, 792,034.05 and 496,918.70

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Solution

The fourth proportional to 528,022.70, 792,034.05 and 496,918.70 is: 745,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,022.70 : 792,034.05 = 496,918.70 : x
  2. Step 2: Convert to fraction form
    528,022.70/792,034.05 = 496,918.70/x
  3. Step 3: Cross multiply
    528,022.70x = 792,034.05 × 496,918.70
  4. Step 4: Simplify right side
    528,022.70x = 393,576,530,481.74
  5. Step 5: Solve for x
    x = 393,576,530,481.74/528,022.70
  6. Step 6: Final answer
    x = 745,378.05

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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.