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Finding the Fourth Proportional to 488,566.60, 731,813.10 and 405,622.60

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Solution

The fourth proportional to 488,566.60, 731,813.10 and 405,622.60 is: 607,573.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,566.60 : 731,813.10 = 405,622.60 : x
  2. Step 2: Convert to fraction form
    488,566.60/731,813.10 = 405,622.60/x
  3. Step 3: Cross multiply
    488,566.60x = 731,813.10 × 405,622.60
  4. Step 4: Simplify right side
    488,566.60x = 296,839,932,336.06
  5. Step 5: Solve for x
    x = 296,839,932,336.06/488,566.60
  6. Step 6: Final answer
    x = 607,573.12

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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.