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Finding the Fourth Proportional to 366,975.40, 550,463.10 and 352,978.60

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Solution

The fourth proportional to 366,975.40, 550,463.10 and 352,978.60 is: 529,467.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,975.40 : 550,463.10 = 352,978.60 : x
  2. Step 2: Convert to fraction form
    366,975.40/550,463.10 = 352,978.60/x
  3. Step 3: Cross multiply
    366,975.40x = 550,463.10 × 352,978.60
  4. Step 4: Simplify right side
    366,975.40x = 194,301,694,389.66
  5. Step 5: Solve for x
    x = 194,301,694,389.66/366,975.40
  6. Step 6: Final answer
    x = 529,467.90

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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.