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Finding the Fourth Proportional to 862,392.38, 1,189,463.94 and 632,872.13

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Solution

The fourth proportional to 862,392.38, 1,189,463.94 and 632,872.13 is: 872,895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,392.38 : 1,189,463.94 = 632,872.13 : x
  2. Step 2: Convert to fraction form
    862,392.38/1,189,463.94 = 632,872.13/x
  3. Step 3: Cross multiply
    862,392.38x = 1,189,463.94 × 632,872.13
  4. Step 4: Simplify right side
    862,392.38x = 752,778,571,318.67
  5. Step 5: Solve for x
    x = 752,778,571,318.67/862,392.38
  6. Step 6: Final answer
    x = 872,895.67

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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.