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Finding the Fourth Proportional to 620,228.40, 930,342.60 and 199,546.80

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Solution

The fourth proportional to 620,228.40, 930,342.60 and 199,546.80 is: 299,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,228.40 : 930,342.60 = 199,546.80 : x
  2. Step 2: Convert to fraction form
    620,228.40/930,342.60 = 199,546.80/x
  3. Step 3: Cross multiply
    620,228.40x = 930,342.60 × 199,546.80
  4. Step 4: Simplify right side
    620,228.40x = 185,646,888,733.68
  5. Step 5: Solve for x
    x = 185,646,888,733.68/620,228.40
  6. Step 6: Final answer
    x = 299,320.20

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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.