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Finding the Fourth Proportional to 370,855.90, 556,283.85 and 366,919.30

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Solution

The fourth proportional to 370,855.90, 556,283.85 and 366,919.30 is: 550,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,855.90 : 556,283.85 = 366,919.30 : x
  2. Step 2: Convert to fraction form
    370,855.90/556,283.85 = 366,919.30/x
  3. Step 3: Cross multiply
    370,855.90x = 556,283.85 × 366,919.30
  4. Step 4: Simplify right side
    370,855.90x = 204,111,280,843.31
  5. Step 5: Solve for x
    x = 204,111,280,843.31/370,855.90
  6. Step 6: Final answer
    x = 550,378.95

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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.