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Finding the Fourth Proportional to 323,766.40, 485,649.60 and 314,550.40

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Solution

The fourth proportional to 323,766.40, 485,649.60 and 314,550.40 is: 471,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,766.40 : 485,649.60 = 314,550.40 : x
  2. Step 2: Convert to fraction form
    323,766.40/485,649.60 = 314,550.40/x
  3. Step 3: Cross multiply
    323,766.40x = 485,649.60 × 314,550.40
  4. Step 4: Simplify right side
    323,766.40x = 152,761,275,939.84
  5. Step 5: Solve for x
    x = 152,761,275,939.84/323,766.40
  6. Step 6: Final answer
    x = 471,825.60

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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.