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Finding the Fourth Proportional to 408,057.10, 612,286.80 and 183,576.40

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Solution

The fourth proportional to 408,057.10, 612,286.80 and 183,576.40 is: 275,455.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,057.10 : 612,286.80 = 183,576.40 : x
  2. Step 2: Convert to fraction form
    408,057.10/612,286.80 = 183,576.40/x
  3. Step 3: Cross multiply
    408,057.10x = 612,286.80 × 183,576.40
  4. Step 4: Simplify right side
    408,057.10x = 112,401,406,511.52
  5. Step 5: Solve for x
    x = 112,401,406,511.52/408,057.10
  6. Step 6: Final answer
    x = 275,455.09

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1.5x scale

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.