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Finding the Fourth Proportional to 543,455.50, 749,992.01 and 301,738.10

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Solution

The fourth proportional to 543,455.50, 749,992.01 and 301,738.10 is: 416,411.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,455.50 : 749,992.01 = 301,738.10 : x
  2. Step 2: Convert to fraction form
    543,455.50/749,992.01 = 301,738.10/x
  3. Step 3: Cross multiply
    543,455.50x = 749,992.01 × 301,738.10
  4. Step 4: Simplify right side
    543,455.50x = 226,301,164,112.58
  5. Step 5: Solve for x
    x = 226,301,164,112.58/543,455.50
  6. Step 6: Final answer
    x = 416,411.58

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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.