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Finding the Fourth Proportional to 648,006.40, 970,843.20 and 529,033.60

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Solution

The fourth proportional to 648,006.40, 970,843.20 and 529,033.60 is: 792,598.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,006.40 : 970,843.20 = 529,033.60 : x
  2. Step 2: Convert to fraction form
    648,006.40/970,843.20 = 529,033.60/x
  3. Step 3: Cross multiply
    648,006.40x = 970,843.20 × 529,033.60
  4. Step 4: Simplify right side
    648,006.40x = 513,608,673,131.52
  5. Step 5: Solve for x
    x = 513,608,673,131.52/648,006.40
  6. Step 6: Final answer
    x = 792,598.15

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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.