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Finding the Fourth Proportional to 415,266.80, 622,025.40 and 415,266.80

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Solution

The fourth proportional to 415,266.80, 622,025.40 and 415,266.80 is: 622,025.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,266.80 : 622,025.40 = 415,266.80 : x
  2. Step 2: Convert to fraction form
    415,266.80/622,025.40 = 415,266.80/x
  3. Step 3: Cross multiply
    415,266.80x = 622,025.40 × 415,266.80
  4. Step 4: Simplify right side
    415,266.80x = 258,306,497,376.72
  5. Step 5: Solve for x
    x = 258,306,497,376.72/415,266.80
  6. Step 6: Final answer
    x = 622,025.40

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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.