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Finding the Fourth Proportional to 443,780.96, 612,417.12 and 242,576.96

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Solution

The fourth proportional to 443,780.96, 612,417.12 and 242,576.96 is: 334,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,780.96 : 612,417.12 = 242,576.96 : x
  2. Step 2: Convert to fraction form
    443,780.96/612,417.12 = 242,576.96/x
  3. Step 3: Cross multiply
    443,780.96x = 612,417.12 × 242,576.96
  4. Step 4: Simplify right side
    443,780.96x = 148,558,283,221.56
  5. Step 5: Solve for x
    x = 148,558,283,221.56/443,780.96
  6. Step 6: Final answer
    x = 334,755.87

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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.