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Finding the Fourth Proportional to 652,156.20, 978,234.30 and 652,156.20

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Solution

The fourth proportional to 652,156.20, 978,234.30 and 652,156.20 is: 978,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,156.20 : 978,234.30 = 652,156.20 : x
  2. Step 2: Convert to fraction form
    652,156.20/978,234.30 = 652,156.20/x
  3. Step 3: Cross multiply
    652,156.20x = 978,234.30 × 652,156.20
  4. Step 4: Simplify right side
    652,156.20x = 637,961,563,797.66
  5. Step 5: Solve for x
    x = 637,961,563,797.66/652,156.20
  6. Step 6: Final answer
    x = 978,234.30

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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.