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Finding the Fourth Proportional to 826,728.16, 1,140,810.48 and 482,593.96

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Solution

The fourth proportional to 826,728.16, 1,140,810.48 and 482,593.96 is: 665,936.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,728.16 : 1,140,810.48 = 482,593.96 : x
  2. Step 2: Convert to fraction form
    826,728.16/1,140,810.48 = 482,593.96/x
  3. Step 3: Cross multiply
    826,728.16x = 1,140,810.48 × 482,593.96
  4. Step 4: Simplify right side
    826,728.16x = 550,548,247,152.70
  5. Step 5: Solve for x
    x = 550,548,247,152.70/826,728.16
  6. Step 6: Final answer
    x = 665,936.25

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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.