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Finding the Fourth Proportional to 630,057.80, 945,269.76 and 203,584.70

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Solution

The fourth proportional to 630,057.80, 945,269.76 and 203,584.70 is: 305,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,057.80 : 945,269.76 = 203,584.70 : x
  2. Step 2: Convert to fraction form
    630,057.80/945,269.76 = 203,584.70/x
  3. Step 3: Cross multiply
    630,057.80x = 945,269.76 × 203,584.70
  4. Step 4: Simplify right side
    630,057.80x = 192,442,460,508.67
  5. Step 5: Solve for x
    x = 192,442,460,508.67/630,057.80
  6. Step 6: Final answer
    x = 305,436.20

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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.