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Finding the Fourth Proportional to 580,040.25, 800,445.72 and 325,385.97

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Solution

The fourth proportional to 580,040.25, 800,445.72 and 325,385.97 is: 449,027.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,040.25 : 800,445.72 = 325,385.97 : x
  2. Step 2: Convert to fraction form
    580,040.25/800,445.72 = 325,385.97/x
  3. Step 3: Cross multiply
    580,040.25x = 800,445.72 × 325,385.97
  4. Step 4: Simplify right side
    580,040.25x = 260,453,808,254.75
  5. Step 5: Solve for x
    x = 260,453,808,254.75/580,040.25
  6. Step 6: Final answer
    x = 449,027.13

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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.