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Finding the Fourth Proportional to 485,381.02, 669,873.22 and 362,660.46

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Solution

The fourth proportional to 485,381.02, 669,873.22 and 362,660.46 is: 500,506.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,381.02 : 669,873.22 = 362,660.46 : x
  2. Step 2: Convert to fraction form
    485,381.02/669,873.22 = 362,660.46/x
  3. Step 3: Cross multiply
    485,381.02x = 669,873.22 × 362,660.46
  4. Step 4: Simplify right side
    485,381.02x = 242,936,530,106.88
  5. Step 5: Solve for x
    x = 242,936,530,106.88/485,381.02
  6. Step 6: Final answer
    x = 500,506.86

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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.