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Finding the Fourth Proportional to 587,205.80, 879,771.90 and 365,330.60

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Solution

The fourth proportional to 587,205.80, 879,771.90 and 365,330.60 is: 547,350.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,205.80 : 879,771.90 = 365,330.60 : x
  2. Step 2: Convert to fraction form
    587,205.80/879,771.90 = 365,330.60/x
  3. Step 3: Cross multiply
    587,205.80x = 879,771.90 × 365,330.60
  4. Step 4: Simplify right side
    587,205.80x = 321,407,596,090.14
  5. Step 5: Solve for x
    x = 321,407,596,090.14/587,205.80
  6. Step 6: Final answer
    x = 547,350.85

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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.