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Finding the Fourth Proportional to 415,092.30, 622,638.45 and 374,414.10

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Solution

The fourth proportional to 415,092.30, 622,638.45 and 374,414.10 is: 561,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,092.30 : 622,638.45 = 374,414.10 : x
  2. Step 2: Convert to fraction form
    415,092.30/622,638.45 = 374,414.10/x
  3. Step 3: Cross multiply
    415,092.30x = 622,638.45 × 374,414.10
  4. Step 4: Simplify right side
    415,092.30x = 233,124,614,882.15
  5. Step 5: Solve for x
    x = 233,124,614,882.15/415,092.30
  6. Step 6: Final answer
    x = 561,621.15

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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.