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Finding the Fourth Proportional to 493,049.40, 739,865.70 and 325,055.40

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Solution

The fourth proportional to 493,049.40, 739,865.70 and 325,055.40 is: 487,775.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,049.40 : 739,865.70 = 325,055.40 : x
  2. Step 2: Convert to fraction form
    493,049.40/739,865.70 = 325,055.40/x
  3. Step 3: Cross multiply
    493,049.40x = 739,865.70 × 325,055.40
  4. Step 4: Simplify right side
    493,049.40x = 240,497,341,059.78
  5. Step 5: Solve for x
    x = 240,497,341,059.78/493,049.40
  6. Step 6: Final answer
    x = 487,775.34

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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.