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Finding the Fourth Proportional to 397,085.10, 595,627.78 and 144,318.66

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Solution

The fourth proportional to 397,085.10, 595,627.78 and 144,318.66 is: 216,478.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,085.10 : 595,627.78 = 144,318.66 : x
  2. Step 2: Convert to fraction form
    397,085.10/595,627.78 = 144,318.66/x
  3. Step 3: Cross multiply
    397,085.10x = 595,627.78 × 144,318.66
  4. Step 4: Simplify right side
    397,085.10x = 85,960,203,068.37
  5. Step 5: Solve for x
    x = 85,960,203,068.37/397,085.10
  6. Step 6: Final answer
    x = 216,478.04

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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.