Home / 611,679.06-918,078.98-327,690.23

Finding the Fourth Proportional to 611,679.06, 918,078.98 and 327,690.23

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Solution

The fourth proportional to 611,679.06, 918,078.98 and 327,690.23 is: 491,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,679.06 : 918,078.98 = 327,690.23 : x
  2. Step 2: Convert to fraction form
    611,679.06/918,078.98 = 327,690.23/x
  3. Step 3: Cross multiply
    611,679.06x = 918,078.98 × 327,690.23
  4. Step 4: Simplify right side
    611,679.06x = 300,845,505,885.52
  5. Step 5: Solve for x
    x = 300,845,505,885.52/611,679.06
  6. Step 6: Final answer
    x = 491,835.55

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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.