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Finding the Fourth Proportional to 310,428.60, 465,847.70 and 113,436.60

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Solution

The fourth proportional to 310,428.60, 465,847.70 and 113,436.60 is: 170,229.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,428.60 : 465,847.70 = 113,436.60 : x
  2. Step 2: Convert to fraction form
    310,428.60/465,847.70 = 113,436.60/x
  3. Step 3: Cross multiply
    310,428.60x = 465,847.70 × 113,436.60
  4. Step 4: Simplify right side
    310,428.60x = 52,844,179,205.82
  5. Step 5: Solve for x
    x = 52,844,179,205.82/310,428.60
  6. Step 6: Final answer
    x = 170,229.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.