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Finding the Fourth Proportional to 511,041.40, 766,853.70 and 195,724.60

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Solution

The fourth proportional to 511,041.40, 766,853.70 and 195,724.60 is: 293,698.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,041.40 : 766,853.70 = 195,724.60 : x
  2. Step 2: Convert to fraction form
    511,041.40/766,853.70 = 195,724.60/x
  3. Step 3: Cross multiply
    511,041.40x = 766,853.70 × 195,724.60
  4. Step 4: Simplify right side
    511,041.40x = 150,092,133,691.02
  5. Step 5: Solve for x
    x = 150,092,133,691.02/511,041.40
  6. Step 6: Final answer
    x = 293,698.58

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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.