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Finding the Fourth Proportional to 448,852.85, 619,509.11 and 274,452.86

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Solution

The fourth proportional to 448,852.85, 619,509.11 and 274,452.86 is: 378,801.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,852.85 : 619,509.11 = 274,452.86 : x
  2. Step 2: Convert to fraction form
    448,852.85/619,509.11 = 274,452.86/x
  3. Step 3: Cross multiply
    448,852.85x = 619,509.11 × 274,452.86
  4. Step 4: Simplify right side
    448,852.85x = 170,026,049,270.46
  5. Step 5: Solve for x
    x = 170,026,049,270.46/448,852.85
  6. Step 6: Final answer
    x = 378,801.32

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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.