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Finding the Fourth Proportional to 358,612.91, 494,889.05 and 197,473.67

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Solution

The fourth proportional to 358,612.91, 494,889.05 and 197,473.67 is: 272,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,612.91 : 494,889.05 = 197,473.67 : x
  2. Step 2: Convert to fraction form
    358,612.91/494,889.05 = 197,473.67/x
  3. Step 3: Cross multiply
    358,612.91x = 494,889.05 × 197,473.67
  4. Step 4: Simplify right side
    358,612.91x = 97,727,553,484.50
  5. Step 5: Solve for x
    x = 97,727,553,484.50/358,612.91
  6. Step 6: Final answer
    x = 272,515.44

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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.