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Finding the Fourth Proportional to 368,223.30, 507,487.50 and 272,563.92

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Solution

The fourth proportional to 368,223.30, 507,487.50 and 272,563.92 is: 375,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,223.30 : 507,487.50 = 272,563.92 : x
  2. Step 2: Convert to fraction form
    368,223.30/507,487.50 = 272,563.92/x
  3. Step 3: Cross multiply
    368,223.30x = 507,487.50 × 272,563.92
  4. Step 4: Simplify right side
    368,223.30x = 138,322,782,351
  5. Step 5: Solve for x
    x = 138,322,782,351/368,223.30
  6. Step 6: Final answer
    x = 375,649.18

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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.