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Finding the Fourth Proportional to 384,553.29, 530,694.23 and 212,482.34

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Solution

The fourth proportional to 384,553.29, 530,694.23 and 212,482.34 is: 293,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,553.29 : 530,694.23 = 212,482.34 : x
  2. Step 2: Convert to fraction form
    384,553.29/530,694.23 = 212,482.34/x
  3. Step 3: Cross multiply
    384,553.29x = 530,694.23 × 212,482.34
  4. Step 4: Simplify right side
    384,553.29x = 112,763,151,814.90
  5. Step 5: Solve for x
    x = 112,763,151,814.90/384,553.29
  6. Step 6: Final answer
    x = 293,231.54

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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.