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Finding the Fourth Proportional to 363,485.10, 545,227.65 and 251,510.70

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Solution

The fourth proportional to 363,485.10, 545,227.65 and 251,510.70 is: 377,266.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,485.10 : 545,227.65 = 251,510.70 : x
  2. Step 2: Convert to fraction form
    363,485.10/545,227.65 = 251,510.70/x
  3. Step 3: Cross multiply
    363,485.10x = 545,227.65 × 251,510.70
  4. Step 4: Simplify right side
    363,485.10x = 137,130,587,910.86
  5. Step 5: Solve for x
    x = 137,130,587,910.86/363,485.10
  6. Step 6: Final answer
    x = 377,266.05

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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.