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Finding the Fourth Proportional to 681,405.20, 933,528.46 and 655,866.29

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Solution

The fourth proportional to 681,405.20, 933,528.46 and 655,866.29 is: 898,540.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,405.20 : 933,528.46 = 655,866.29 : x
  2. Step 2: Convert to fraction form
    681,405.20/933,528.46 = 655,866.29/x
  3. Step 3: Cross multiply
    681,405.20x = 933,528.46 × 655,866.29
  4. Step 4: Simplify right side
    681,405.20x = 612,269,847,669.61
  5. Step 5: Solve for x
    x = 612,269,847,669.61/681,405.20
  6. Step 6: Final answer
    x = 898,540.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.