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Finding the Fourth Proportional to 578,873.36, 868,231.21 and 152,373.46

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Solution

The fourth proportional to 578,873.36, 868,231.21 and 152,373.46 is: 228,539.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,873.36 : 868,231.21 = 152,373.46 : x
  2. Step 2: Convert to fraction form
    578,873.36/868,231.21 = 152,373.46/x
  3. Step 3: Cross multiply
    578,873.36x = 868,231.21 × 152,373.46
  4. Step 4: Simplify right side
    578,873.36x = 132,295,392,785.82
  5. Step 5: Solve for x
    x = 132,295,392,785.82/578,873.36
  6. Step 6: Final answer
    x = 228,539.44

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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.