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Finding the Fourth Proportional to 483,407.80, 725,111.70 and 217,295.80

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Solution

The fourth proportional to 483,407.80, 725,111.70 and 217,295.80 is: 325,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,407.80 : 725,111.70 = 217,295.80 : x
  2. Step 2: Convert to fraction form
    483,407.80/725,111.70 = 217,295.80/x
  3. Step 3: Cross multiply
    483,407.80x = 725,111.70 × 217,295.80
  4. Step 4: Simplify right side
    483,407.80x = 157,563,726,940.86
  5. Step 5: Solve for x
    x = 157,563,726,940.86/483,407.80
  6. Step 6: Final answer
    x = 325,943.70

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Similar ratio
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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.