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Finding the Fourth Proportional to 648,297.20, 894,767.24 and 386,669.30

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Solution

The fourth proportional to 648,297.20, 894,767.24 and 386,669.30 is: 533,673.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,297.20 : 894,767.24 = 386,669.30 : x
  2. Step 2: Convert to fraction form
    648,297.20/894,767.24 = 386,669.30/x
  3. Step 3: Cross multiply
    648,297.20x = 894,767.24 × 386,669.30
  4. Step 4: Simplify right side
    648,297.20x = 345,979,018,846.57
  5. Step 5: Solve for x
    x = 345,979,018,846.57/648,297.20
  6. Step 6: Final answer
    x = 533,673.47

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