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Finding the Fourth Proportional to 470,363.36, 648,743.78 and 325,410.31

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Solution

The fourth proportional to 470,363.36, 648,743.78 and 325,410.31 is: 448,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,363.36 : 648,743.78 = 325,410.31 : x
  2. Step 2: Convert to fraction form
    470,363.36/648,743.78 = 325,410.31/x
  3. Step 3: Cross multiply
    470,363.36x = 648,743.78 × 325,410.31
  4. Step 4: Simplify right side
    470,363.36x = 211,107,916,184.83
  5. Step 5: Solve for x
    x = 211,107,916,184.83/470,363.36
  6. Step 6: Final answer
    x = 448,818.80

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Why These Related Problems?

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