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Finding the Fourth Proportional to 636,531.60, 955,226.76 and 262,546.32

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Solution

The fourth proportional to 636,531.60, 955,226.76 and 262,546.32 is: 393,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,531.60 : 955,226.76 = 262,546.32 : x
  2. Step 2: Convert to fraction form
    636,531.60/955,226.76 = 262,546.32/x
  3. Step 3: Cross multiply
    636,531.60x = 955,226.76 × 262,546.32
  4. Step 4: Simplify right side
    636,531.60x = 250,791,270,603.52
  5. Step 5: Solve for x
    x = 250,791,270,603.52/636,531.60
  6. Step 6: Final answer
    x = 393,996.58

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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.