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Finding the Fourth Proportional to 633,909.65, 874,755.65 and 347,409.41

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Solution

The fourth proportional to 633,909.65, 874,755.65 and 347,409.41 is: 479,403.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,909.65 : 874,755.65 = 347,409.41 : x
  2. Step 2: Convert to fraction form
    633,909.65/874,755.65 = 347,409.41/x
  3. Step 3: Cross multiply
    633,909.65x = 874,755.65 × 347,409.41
  4. Step 4: Simplify right side
    633,909.65x = 303,898,340,755.41
  5. Step 5: Solve for x
    x = 303,898,340,755.41/633,909.65
  6. Step 6: Final answer
    x = 479,403.24

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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.