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Finding the Fourth Proportional to 616,391.51, 850,621.44 and 344,459.41

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Solution

The fourth proportional to 616,391.51, 850,621.44 and 344,459.41 is: 475,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,391.51 : 850,621.44 = 344,459.41 : x
  2. Step 2: Convert to fraction form
    616,391.51/850,621.44 = 344,459.41/x
  3. Step 3: Cross multiply
    616,391.51x = 850,621.44 × 344,459.41
  4. Step 4: Simplify right side
    616,391.51x = 293,004,559,355.75
  5. Step 5: Solve for x
    x = 293,004,559,355.75/616,391.51
  6. Step 6: Final answer
    x = 475,354.63

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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.