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Finding the Fourth Proportional to 516,133.60, 774,200.40 and 327,176.80

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Solution

The fourth proportional to 516,133.60, 774,200.40 and 327,176.80 is: 490,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,133.60 : 774,200.40 = 327,176.80 : x
  2. Step 2: Convert to fraction form
    516,133.60/774,200.40 = 327,176.80/x
  3. Step 3: Cross multiply
    516,133.60x = 774,200.40 × 327,176.80
  4. Step 4: Simplify right side
    516,133.60x = 253,300,409,430.72
  5. Step 5: Solve for x
    x = 253,300,409,430.72/516,133.60
  6. Step 6: Final answer
    x = 490,765.20

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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.