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Finding the Fourth Proportional to 562,019.76, 775,586.71 and 303,896.08

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Solution

The fourth proportional to 562,019.76, 775,586.71 and 303,896.08 is: 419,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,019.76 : 775,586.71 = 303,896.08 : x
  2. Step 2: Convert to fraction form
    562,019.76/775,586.71 = 303,896.08/x
  3. Step 3: Cross multiply
    562,019.76x = 775,586.71 × 303,896.08
  4. Step 4: Simplify right side
    562,019.76x = 235,697,760,869.10
  5. Step 5: Solve for x
    x = 235,697,760,869.10/562,019.76
  6. Step 6: Final answer
    x = 419,376.29

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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.