Home / 411,971.37-618,292.28-212,348.85

Finding the Fourth Proportional to 411,971.37, 618,292.28 and 212,348.85

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Solution

The fourth proportional to 411,971.37, 618,292.28 and 212,348.85 is: 318,696.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,971.37 : 618,292.28 = 212,348.85 : x
  2. Step 2: Convert to fraction form
    411,971.37/618,292.28 = 212,348.85/x
  3. Step 3: Cross multiply
    411,971.37x = 618,292.28 × 212,348.85
  4. Step 4: Simplify right side
    411,971.37x = 131,293,652,037.85
  5. Step 5: Solve for x
    x = 131,293,652,037.85/411,971.37
  6. Step 6: Final answer
    x = 318,696.06

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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.