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Finding the Fourth Proportional to 433,520.40, 651,058.20 and 419,523.60

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Solution

The fourth proportional to 433,520.40, 651,058.20 and 419,523.60 is: 630,037.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,520.40 : 651,058.20 = 419,523.60 : x
  2. Step 2: Convert to fraction form
    433,520.40/651,058.20 = 419,523.60/x
  3. Step 3: Cross multiply
    433,520.40x = 651,058.20 × 419,523.60
  4. Step 4: Simplify right side
    433,520.40x = 273,134,279,873.52
  5. Step 5: Solve for x
    x = 273,134,279,873.52/433,520.40
  6. Step 6: Final answer
    x = 630,037.89

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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.