Home / 1,098,624.08-1,647,941.40-388,652.72

Finding the Fourth Proportional to 1,098,624.08, 1,647,941.40 and 388,652.72

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Solution

The fourth proportional to 1,098,624.08, 1,647,941.40 and 388,652.72 is: 582,980.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,624.08 : 1,647,941.40 = 388,652.72 : x
  2. Step 2: Convert to fraction form
    1,098,624.08/1,647,941.40 = 388,652.72/x
  3. Step 3: Cross multiply
    1,098,624.08x = 1,647,941.40 × 388,652.72
  4. Step 4: Simplify right side
    1,098,624.08x = 640,476,907,510.61
  5. Step 5: Solve for x
    x = 640,476,907,510.61/1,098,624.08
  6. Step 6: Final answer
    x = 582,980.95

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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.