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Finding the Fourth Proportional to 632,466.63, 872,806.59 and 345,991.50

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Solution

The fourth proportional to 632,466.63, 872,806.59 and 345,991.50 is: 477,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,466.63 : 872,806.59 = 345,991.50 : x
  2. Step 2: Convert to fraction form
    632,466.63/872,806.59 = 345,991.50/x
  3. Step 3: Cross multiply
    632,466.63x = 872,806.59 × 345,991.50
  4. Step 4: Simplify right side
    632,466.63x = 301,983,661,283.99
  5. Step 5: Solve for x
    x = 301,983,661,283.99/632,466.63
  6. Step 6: Final answer
    x = 477,469.71

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1.5x scale

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.