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Finding the Fourth Proportional to 483,769.80, 725,309.10 and 217,312.20

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Solution

The fourth proportional to 483,769.80, 725,309.10 and 217,312.20 is: 325,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,769.80 : 725,309.10 = 217,312.20 : x
  2. Step 2: Convert to fraction form
    483,769.80/725,309.10 = 217,312.20/x
  3. Step 3: Cross multiply
    483,769.80x = 725,309.10 × 217,312.20
  4. Step 4: Simplify right side
    483,769.80x = 157,618,516,201.02
  5. Step 5: Solve for x
    x = 157,618,516,201.02/483,769.80
  6. Step 6: Final answer
    x = 325,813.05

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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.