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Finding the Fourth Proportional to 578,911.92, 798,898.44 and 352,557.48

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Solution

The fourth proportional to 578,911.92, 798,898.44 and 352,557.48 is: 486,529.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,911.92 : 798,898.44 = 352,557.48 : x
  2. Step 2: Convert to fraction form
    578,911.92/798,898.44 = 352,557.48/x
  3. Step 3: Cross multiply
    578,911.92x = 798,898.44 × 352,557.48
  4. Step 4: Simplify right side
    578,911.92x = 281,657,620,782.33
  5. Step 5: Solve for x
    x = 281,657,620,782.33/578,911.92
  6. Step 6: Final answer
    x = 486,529.32

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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.