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Finding the Fourth Proportional to 385,622.70, 579,816.45 and 324,797.10

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Solution

The fourth proportional to 385,622.70, 579,816.45 and 324,797.10 is: 488,360.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,622.70 : 579,816.45 = 324,797.10 : x
  2. Step 2: Convert to fraction form
    385,622.70/579,816.45 = 324,797.10/x
  3. Step 3: Cross multiply
    385,622.70x = 579,816.45 × 324,797.10
  4. Step 4: Simplify right side
    385,622.70x = 188,322,701,492.30
  5. Step 5: Solve for x
    x = 188,322,701,492.30/385,622.70
  6. Step 6: Final answer
    x = 488,360.00

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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.