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Finding the Fourth Proportional to 358,471.80, 537,689.88 and 133,814.97

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Solution

The fourth proportional to 358,471.80, 537,689.88 and 133,814.97 is: 200,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,471.80 : 537,689.88 = 133,814.97 : x
  2. Step 2: Convert to fraction form
    358,471.80/537,689.88 = 133,814.97/x
  3. Step 3: Cross multiply
    358,471.80x = 537,689.88 × 133,814.97
  4. Step 4: Simplify right side
    358,471.80x = 71,950,955,161.50
  5. Step 5: Solve for x
    x = 71,950,955,161.50/358,471.80
  6. Step 6: Final answer
    x = 200,715.80

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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.