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Finding the Fourth Proportional to 503,903.58, 755,409.04 and 361,390.46

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Solution

The fourth proportional to 503,903.58, 755,409.04 and 361,390.46 is: 541,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,903.58 : 755,409.04 = 361,390.46 : x
  2. Step 2: Convert to fraction form
    503,903.58/755,409.04 = 361,390.46/x
  3. Step 3: Cross multiply
    503,903.58x = 755,409.04 × 361,390.46
  4. Step 4: Simplify right side
    503,903.58x = 272,997,620,022.41
  5. Step 5: Solve for x
    x = 272,997,620,022.41/503,903.58
  6. Step 6: Final answer
    x = 541,765.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.