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Finding the Fourth Proportional to 822,865.12, 1,135,662.96 and 460,427.92

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Solution

The fourth proportional to 822,865.12, 1,135,662.96 and 460,427.92 is: 635,451.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,865.12 : 1,135,662.96 = 460,427.92 : x
  2. Step 2: Convert to fraction form
    822,865.12/1,135,662.96 = 460,427.92/x
  3. Step 3: Cross multiply
    822,865.12x = 1,135,662.96 × 460,427.92
  4. Step 4: Simplify right side
    822,865.12x = 522,890,934,493.84
  5. Step 5: Solve for x
    x = 522,890,934,493.84/822,865.12
  6. Step 6: Final answer
    x = 635,451.57

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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.