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Finding the Fourth Proportional to 358,560.82, 537,715.90 and 105,774.20

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Solution

The fourth proportional to 358,560.82, 537,715.90 and 105,774.20 is: 158,624.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,560.82 : 537,715.90 = 105,774.20 : x
  2. Step 2: Convert to fraction form
    358,560.82/537,715.90 = 105,774.20/x
  3. Step 3: Cross multiply
    358,560.82x = 537,715.90 × 105,774.20
  4. Step 4: Simplify right side
    358,560.82x = 56,876,469,149.78
  5. Step 5: Solve for x
    x = 56,876,469,149.78/358,560.82
  6. Step 6: Final answer
    x = 158,624.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.