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Finding the Fourth Proportional to 653,029.70, 978,232.35 and 440,453.30

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Solution

The fourth proportional to 653,029.70, 978,232.35 and 440,453.30 is: 659,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,029.70 : 978,232.35 = 440,453.30 : x
  2. Step 2: Convert to fraction form
    653,029.70/978,232.35 = 440,453.30/x
  3. Step 3: Cross multiply
    653,029.70x = 978,232.35 × 440,453.30
  4. Step 4: Simplify right side
    653,029.70x = 430,865,666,724.26
  5. Step 5: Solve for x
    x = 430,865,666,724.26/653,029.70
  6. Step 6: Final answer
    x = 659,794.90

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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.