Home / 810,292.20-1,216,201.11-411,219.37

Finding the Fourth Proportional to 810,292.20, 1,216,201.11 and 411,219.37

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Solution

The fourth proportional to 810,292.20, 1,216,201.11 and 411,219.37 is: 617,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,292.20 : 1,216,201.11 = 411,219.37 : x
  2. Step 2: Convert to fraction form
    810,292.20/1,216,201.11 = 411,219.37/x
  3. Step 3: Cross multiply
    810,292.20x = 1,216,201.11 × 411,219.37
  4. Step 4: Simplify right side
    810,292.20x = 500,125,454,247.50
  5. Step 5: Solve for x
    x = 500,125,454,247.50/810,292.20
  6. Step 6: Final answer
    x = 617,216.18

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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.