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Finding the Fourth Proportional to 580,266.60, 869,466.78 and 486,954.60

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Solution

The fourth proportional to 580,266.60, 869,466.78 and 486,954.60 is: 729,648.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,266.60 : 869,466.78 = 486,954.60 : x
  2. Step 2: Convert to fraction form
    580,266.60/869,466.78 = 486,954.60/x
  3. Step 3: Cross multiply
    580,266.60x = 869,466.78 × 486,954.60
  4. Step 4: Simplify right side
    580,266.60x = 423,390,848,068.19
  5. Step 5: Solve for x
    x = 423,390,848,068.19/580,266.60
  6. Step 6: Final answer
    x = 729,648.83

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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.