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Finding the Fourth Proportional to 566,912.35, 782,311.60 and 321,864.98

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Solution

The fourth proportional to 566,912.35, 782,311.60 and 321,864.98 is: 444,158.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,912.35 : 782,311.60 = 321,864.98 : x
  2. Step 2: Convert to fraction form
    566,912.35/782,311.60 = 321,864.98/x
  3. Step 3: Cross multiply
    566,912.35x = 782,311.60 × 321,864.98
  4. Step 4: Simplify right side
    566,912.35x = 251,798,710,390.28
  5. Step 5: Solve for x
    x = 251,798,710,390.28/566,912.35
  6. Step 6: Final answer
    x = 444,158.10

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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.