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Finding the Fourth Proportional to 358,342.71, 494,513.03 and 197,197.76

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Solution

The fourth proportional to 358,342.71, 494,513.03 and 197,197.76 is: 272,132.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,342.71 : 494,513.03 = 197,197.76 : x
  2. Step 2: Convert to fraction form
    358,342.71/494,513.03 = 197,197.76/x
  3. Step 3: Cross multiply
    358,342.71x = 494,513.03 × 197,197.76
  4. Step 4: Simplify right side
    358,342.71x = 97,516,862,057.11
  5. Step 5: Solve for x
    x = 97,516,862,057.11/358,342.71
  6. Step 6: Final answer
    x = 272,132.96

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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.