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Finding the Fourth Proportional to 358,405.56, 494,595.90 and 197,257.14

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Solution

The fourth proportional to 358,405.56, 494,595.90 and 197,257.14 is: 272,212.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,405.56 : 494,595.90 = 197,257.14 : x
  2. Step 2: Convert to fraction form
    358,405.56/494,595.90 = 197,257.14/x
  3. Step 3: Cross multiply
    358,405.56x = 494,595.90 × 197,257.14
  4. Step 4: Simplify right side
    358,405.56x = 97,562,572,689.73
  5. Step 5: Solve for x
    x = 97,562,572,689.73/358,405.56
  6. Step 6: Final answer
    x = 272,212.78

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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.