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Finding the Fourth Proportional to 465,816.40, 699,250.20 and 308,352.40

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Solution

The fourth proportional to 465,816.40, 699,250.20 and 308,352.40 is: 462,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,816.40 : 699,250.20 = 308,352.40 : x
  2. Step 2: Convert to fraction form
    465,816.40/699,250.20 = 308,352.40/x
  3. Step 3: Cross multiply
    465,816.40x = 699,250.20 × 308,352.40
  4. Step 4: Simplify right side
    465,816.40x = 215,615,477,370.48
  5. Step 5: Solve for x
    x = 215,615,477,370.48/465,816.40
  6. Step 6: Final answer
    x = 462,876.53

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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.