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Finding the Fourth Proportional to 358,534.56, 494,758.90 and 197,358.13

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Solution

The fourth proportional to 358,534.56, 494,758.90 and 197,358.13 is: 272,343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,534.56 : 494,758.90 = 197,358.13 : x
  2. Step 2: Convert to fraction form
    358,534.56/494,758.90 = 197,358.13/x
  3. Step 3: Cross multiply
    358,534.56x = 494,758.90 × 197,358.13
  4. Step 4: Simplify right side
    358,534.56x = 97,644,690,314.66
  5. Step 5: Solve for x
    x = 97,644,690,314.66/358,534.56
  6. Step 6: Final answer
    x = 272,343.87

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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.