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Finding the Fourth Proportional to 567,998.42, 851,747.01 and 212,763.20

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Solution

The fourth proportional to 567,998.42, 851,747.01 and 212,763.20 is: 319,050.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,998.42 : 851,747.01 = 212,763.20 : x
  2. Step 2: Convert to fraction form
    567,998.42/851,747.01 = 212,763.20/x
  3. Step 3: Cross multiply
    567,998.42x = 851,747.01 × 212,763.20
  4. Step 4: Simplify right side
    567,998.42x = 181,220,415,179.30
  5. Step 5: Solve for x
    x = 181,220,415,179.30/567,998.42
  6. Step 6: Final answer
    x = 319,050.92

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Double scale
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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.