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Finding the Fourth Proportional to 567,874.60, 782,072.40 and 555,474.32

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Solution

The fourth proportional to 567,874.60, 782,072.40 and 555,474.32 is: 764,994.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,874.60 : 782,072.40 = 555,474.32 : x
  2. Step 2: Convert to fraction form
    567,874.60/782,072.40 = 555,474.32/x
  3. Step 3: Cross multiply
    567,874.60x = 782,072.40 × 555,474.32
  4. Step 4: Simplify right side
    567,874.60x = 434,421,134,580.77
  5. Step 5: Solve for x
    x = 434,421,134,580.77/567,874.60
  6. Step 6: Final answer
    x = 764,994.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.