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Finding the Fourth Proportional to 623,003.52, 859,745.20 and 336,523.60

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Solution

The fourth proportional to 623,003.52, 859,745.20 and 336,523.60 is: 464,402.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,003.52 : 859,745.20 = 336,523.60 : x
  2. Step 2: Convert to fraction form
    623,003.52/859,745.20 = 336,523.60/x
  3. Step 3: Cross multiply
    623,003.52x = 859,745.20 × 336,523.60
  4. Step 4: Simplify right side
    623,003.52x = 289,324,549,786.72
  5. Step 5: Solve for x
    x = 289,324,549,786.72/623,003.52
  6. Step 6: Final answer
    x = 464,402.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.