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Finding the Fourth Proportional to 625,528.46, 863,219.93 and 353,586.83

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Solution

The fourth proportional to 625,528.46, 863,219.93 and 353,586.83 is: 487,944.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,528.46 : 863,219.93 = 353,586.83 : x
  2. Step 2: Convert to fraction form
    625,528.46/863,219.93 = 353,586.83/x
  3. Step 3: Cross multiply
    625,528.46x = 863,219.93 × 353,586.83
  4. Step 4: Simplify right side
    625,528.46x = 305,223,192,557.49
  5. Step 5: Solve for x
    x = 305,223,192,557.49/625,528.46
  6. Step 6: Final answer
    x = 487,944.53

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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.