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Finding the Fourth Proportional to 483,145.80, 677,803.80 and 483,145.80

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Solution

The fourth proportional to 483,145.80, 677,803.80 and 483,145.80 is: 677,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,145.80 : 677,803.80 = 483,145.80 : x
  2. Step 2: Convert to fraction form
    483,145.80/677,803.80 = 483,145.80/x
  3. Step 3: Cross multiply
    483,145.80x = 677,803.80 × 483,145.80
  4. Step 4: Simplify right side
    483,145.80x = 327,478,059,194.04
  5. Step 5: Solve for x
    x = 327,478,059,194.04/483,145.80
  6. Step 6: Final answer
    x = 677,803.80

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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.