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Finding the Fourth Proportional to 358,145.57, 494,230.47 and 197,000.58

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Solution

The fourth proportional to 358,145.57, 494,230.47 and 197,000.58 is: 271,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,145.57 : 494,230.47 = 197,000.58 : x
  2. Step 2: Convert to fraction form
    358,145.57/494,230.47 = 197,000.58/x
  3. Step 3: Cross multiply
    358,145.57x = 494,230.47 × 197,000.58
  4. Step 4: Simplify right side
    358,145.57x = 97,363,689,243.67
  5. Step 5: Solve for x
    x = 97,363,689,243.67/358,145.57
  6. Step 6: Final answer
    x = 271,855.07

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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.