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Finding the Fourth Proportional to 823,951, 1,236,596.94 and 424,705.94

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Solution

The fourth proportional to 823,951, 1,236,596.94 and 424,705.94 is: 637,404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,951 : 1,236,596.94 = 424,705.94 : x
  2. Step 2: Convert to fraction form
    823,951/1,236,596.94 = 424,705.94/x
  3. Step 3: Cross multiply
    823,951x = 1,236,596.94 × 424,705.94
  4. Step 4: Simplify right side
    823,951x = 525,190,065,803.82
  5. Step 5: Solve for x
    x = 525,190,065,803.82/823,951
  6. Step 6: Final answer
    x = 637,404.49

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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.