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Finding the Fourth Proportional to 483,896.90, 678,155.50 and 483,896.90

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Solution

The fourth proportional to 483,896.90, 678,155.50 and 483,896.90 is: 678,155.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,896.90 : 678,155.50 = 483,896.90 : x
  2. Step 2: Convert to fraction form
    483,896.90/678,155.50 = 483,896.90/x
  3. Step 3: Cross multiply
    483,896.90x = 678,155.50 × 483,896.90
  4. Step 4: Simplify right side
    483,896.90x = 328,157,344,167.95
  5. Step 5: Solve for x
    x = 328,157,344,167.95/483,896.90
  6. Step 6: Final answer
    x = 678,155.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.