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Finding the Fourth Proportional to 633,409.35, 874,119.08 and 361,471.83

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Solution

The fourth proportional to 633,409.35, 874,119.08 and 361,471.83 is: 498,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,409.35 : 874,119.08 = 361,471.83 : x
  2. Step 2: Convert to fraction form
    633,409.35/874,119.08 = 361,471.83/x
  3. Step 3: Cross multiply
    633,409.35x = 874,119.08 × 361,471.83
  4. Step 4: Simplify right side
    633,409.35x = 315,969,421,678.16
  5. Step 5: Solve for x
    x = 315,969,421,678.16/633,409.35
  6. Step 6: Final answer
    x = 498,839.21

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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.