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Finding the Fourth Proportional to 368,420.84, 507,192.52 and 351,493.48

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Solution

The fourth proportional to 368,420.84, 507,192.52 and 351,493.48 is: 483,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,420.84 : 507,192.52 = 351,493.48 : x
  2. Step 2: Convert to fraction form
    368,420.84/507,192.52 = 351,493.48/x
  3. Step 3: Cross multiply
    368,420.84x = 507,192.52 × 351,493.48
  4. Step 4: Simplify right side
    368,420.84x = 178,274,863,884.77
  5. Step 5: Solve for x
    x = 178,274,863,884.77/368,420.84
  6. Step 6: Final answer
    x = 483,889.20

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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.