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Finding the Fourth Proportional to 358,461.76, 493,609.36 and 350,505.76

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Solution

The fourth proportional to 358,461.76, 493,609.36 and 350,505.76 is: 482,653.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,461.76 : 493,609.36 = 350,505.76 : x
  2. Step 2: Convert to fraction form
    358,461.76/493,609.36 = 350,505.76/x
  3. Step 3: Cross multiply
    358,461.76x = 493,609.36 × 350,505.76
  4. Step 4: Simplify right side
    358,461.76x = 173,012,923,869.91
  5. Step 5: Solve for x
    x = 173,012,923,869.91/358,461.76
  6. Step 6: Final answer
    x = 482,653.78

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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.