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Finding the Fourth Proportional to 503,277.40, 753,603.90 and 324,818.20

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Solution

The fourth proportional to 503,277.40, 753,603.90 and 324,818.20 is: 486,380.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,277.40 : 753,603.90 = 324,818.20 : x
  2. Step 2: Convert to fraction form
    503,277.40/753,603.90 = 324,818.20/x
  3. Step 3: Cross multiply
    503,277.40x = 753,603.90 × 324,818.20
  4. Step 4: Simplify right side
    503,277.40x = 244,784,262,310.98
  5. Step 5: Solve for x
    x = 244,784,262,310.98/503,277.40
  6. Step 6: Final answer
    x = 486,380.40

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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.