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Finding the Fourth Proportional to 543,454.50, 749,990.63 and 301,737.10

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Solution

The fourth proportional to 543,454.50, 749,990.63 and 301,737.10 is: 416,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,454.50 : 749,990.63 = 301,737.10 : x
  2. Step 2: Convert to fraction form
    543,454.50/749,990.63 = 301,737.10/x
  3. Step 3: Cross multiply
    543,454.50x = 749,990.63 × 301,737.10
  4. Step 4: Simplify right side
    543,454.50x = 226,299,997,723.37
  5. Step 5: Solve for x
    x = 226,299,997,723.37/543,454.50
  6. Step 6: Final answer
    x = 416,410.20

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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.