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Finding the Fourth Proportional to 396,739.80, 595,109.70 and 377,056.80

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Solution

The fourth proportional to 396,739.80, 595,109.70 and 377,056.80 is: 565,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,739.80 : 595,109.70 = 377,056.80 : x
  2. Step 2: Convert to fraction form
    396,739.80/595,109.70 = 377,056.80/x
  3. Step 3: Cross multiply
    396,739.80x = 595,109.70 × 377,056.80
  4. Step 4: Simplify right side
    396,739.80x = 224,390,159,130.96
  5. Step 5: Solve for x
    x = 224,390,159,130.96/396,739.80
  6. Step 6: Final answer
    x = 565,585.20

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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.