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Finding the Fourth Proportional to 587,203.80, 879,768.90 and 365,328.60

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Solution

The fourth proportional to 587,203.80, 879,768.90 and 365,328.60 is: 547,347.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,203.80 : 879,768.90 = 365,328.60 : x
  2. Step 2: Convert to fraction form
    587,203.80/879,768.90 = 365,328.60/x
  3. Step 3: Cross multiply
    587,203.80x = 879,768.90 × 365,328.60
  4. Step 4: Simplify right side
    587,203.80x = 321,404,740,560.54
  5. Step 5: Solve for x
    x = 321,404,740,560.54/587,203.80
  6. Step 6: Final answer
    x = 547,347.86

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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.