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Finding the Fourth Proportional to 443,561.88, 612,115.40 and 242,357.88

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Solution

The fourth proportional to 443,561.88, 612,115.40 and 242,357.88 is: 334,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,561.88 : 612,115.40 = 242,357.88 : x
  2. Step 2: Convert to fraction form
    443,561.88/612,115.40 = 242,357.88/x
  3. Step 3: Cross multiply
    443,561.88x = 612,115.40 × 242,357.88
  4. Step 4: Simplify right side
    443,561.88x = 148,350,990,659.35
  5. Step 5: Solve for x
    x = 148,350,990,659.35/443,561.88
  6. Step 6: Final answer
    x = 334,453.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.