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Finding the Fourth Proportional to 358,337.79, 494,493.75 and 197,177.76

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Solution

The fourth proportional to 358,337.79, 494,493.75 and 197,177.76 is: 272,098.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,337.79 : 494,493.75 = 197,177.76 : x
  2. Step 2: Convert to fraction form
    358,337.79/494,493.75 = 197,177.76/x
  3. Step 3: Cross multiply
    358,337.79x = 494,493.75 × 197,177.76
  4. Step 4: Simplify right side
    358,337.79x = 97,503,169,959
  5. Step 5: Solve for x
    x = 97,503,169,959/358,337.79
  6. Step 6: Final answer
    x = 272,098.49

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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.