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Finding the Fourth Proportional to 433,259.70, 649,889.55 and 133,713.60

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Solution

The fourth proportional to 433,259.70, 649,889.55 and 133,713.60 is: 200,570.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,259.70 : 649,889.55 = 133,713.60 : x
  2. Step 2: Convert to fraction form
    433,259.70/649,889.55 = 133,713.60/x
  3. Step 3: Cross multiply
    433,259.70x = 649,889.55 × 133,713.60
  4. Step 4: Simplify right side
    433,259.70x = 86,899,071,332.88
  5. Step 5: Solve for x
    x = 86,899,071,332.88/433,259.70
  6. Step 6: Final answer
    x = 200,570.40

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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.