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Finding the Fourth Proportional to 202,390.20, 283,761 and 202,390.20

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Solution

The fourth proportional to 202,390.20, 283,761 and 202,390.20 is: 283,761

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,390.20 : 283,761 = 202,390.20 : x
  2. Step 2: Convert to fraction form
    202,390.20/283,761 = 202,390.20/x
  3. Step 3: Cross multiply
    202,390.20x = 283,761 × 202,390.20
  4. Step 4: Simplify right side
    202,390.20x = 57,430,445,542.20
  5. Step 5: Solve for x
    x = 57,430,445,542.20/202,390.20
  6. Step 6: Final answer
    x = 283,761

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.