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Finding the Fourth Proportional to 570,063.20, 854,530.80 and 270,016.40

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Solution

The fourth proportional to 570,063.20, 854,530.80 and 270,016.40 is: 404,757.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,063.20 : 854,530.80 = 270,016.40 : x
  2. Step 2: Convert to fraction form
    570,063.20/854,530.80 = 270,016.40/x
  3. Step 3: Cross multiply
    570,063.20x = 854,530.80 × 270,016.40
  4. Step 4: Simplify right side
    570,063.20x = 230,737,330,305.12
  5. Step 5: Solve for x
    x = 230,737,330,305.12/570,063.20
  6. Step 6: Final answer
    x = 404,757.46

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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.