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Finding the Fourth Proportional to 577,855.80, 866,783.70 and 151,390.80

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Solution

The fourth proportional to 577,855.80, 866,783.70 and 151,390.80 is: 227,086.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,855.80 : 866,783.70 = 151,390.80 : x
  2. Step 2: Convert to fraction form
    577,855.80/866,783.70 = 151,390.80/x
  3. Step 3: Cross multiply
    577,855.80x = 866,783.70 × 151,390.80
  4. Step 4: Simplify right side
    577,855.80x = 131,223,077,769.96
  5. Step 5: Solve for x
    x = 131,223,077,769.96/577,855.80
  6. Step 6: Final answer
    x = 227,086.20

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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.