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Finding the Fourth Proportional to 384,433.53, 530,516.16 and 212,363.34

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Solution

The fourth proportional to 384,433.53, 530,516.16 and 212,363.34 is: 293,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,433.53 : 530,516.16 = 212,363.34 : x
  2. Step 2: Convert to fraction form
    384,433.53/530,516.16 = 212,363.34/x
  3. Step 3: Cross multiply
    384,433.53x = 530,516.16 × 212,363.34
  4. Step 4: Simplify right side
    384,433.53x = 112,662,183,661.57
  5. Step 5: Solve for x
    x = 112,662,183,661.57/384,433.53
  6. Step 6: Final answer
    x = 293,060.24

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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.