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Finding the Fourth Proportional to 581,672.03, 872,037.44 and 261,589.50

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Solution

The fourth proportional to 581,672.03, 872,037.44 and 261,589.50 is: 392,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,672.03 : 872,037.44 = 261,589.50 : x
  2. Step 2: Convert to fraction form
    581,672.03/872,037.44 = 261,589.50/x
  3. Step 3: Cross multiply
    581,672.03x = 872,037.44 × 261,589.50
  4. Step 4: Simplify right side
    581,672.03x = 228,115,832,242.75
  5. Step 5: Solve for x
    x = 228,115,832,242.75/581,672.03
  6. Step 6: Final answer
    x = 392,172.60

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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.