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Finding the Fourth Proportional to 493,244.40, 739,866.60 and 440,756.40

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Solution

The fourth proportional to 493,244.40, 739,866.60 and 440,756.40 is: 661,134.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,244.40 : 739,866.60 = 440,756.40 : x
  2. Step 2: Convert to fraction form
    493,244.40/739,866.60 = 440,756.40/x
  3. Step 3: Cross multiply
    493,244.40x = 739,866.60 × 440,756.40
  4. Step 4: Simplify right side
    493,244.40x = 326,100,939,096.24
  5. Step 5: Solve for x
    x = 326,100,939,096.24/493,244.40
  6. Step 6: Final answer
    x = 661,134.60

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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.