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Finding the Fourth Proportional to 435,021.60, 651,303.60 and 422,733.60

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Solution

The fourth proportional to 435,021.60, 651,303.60 and 422,733.60 is: 632,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,021.60 : 651,303.60 = 422,733.60 : x
  2. Step 2: Convert to fraction form
    435,021.60/651,303.60 = 422,733.60/x
  3. Step 3: Cross multiply
    435,021.60x = 651,303.60 × 422,733.60
  4. Step 4: Simplify right side
    435,021.60x = 275,327,915,520.96
  5. Step 5: Solve for x
    x = 275,327,915,520.96/435,021.60
  6. Step 6: Final answer
    x = 632,906.31

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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.