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Finding the Fourth Proportional to 567,805.20, 851,707.80 and 540,157.20

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Solution

The fourth proportional to 567,805.20, 851,707.80 and 540,157.20 is: 810,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,805.20 : 851,707.80 = 540,157.20 : x
  2. Step 2: Convert to fraction form
    567,805.20/851,707.80 = 540,157.20/x
  3. Step 3: Cross multiply
    567,805.20x = 851,707.80 × 540,157.20
  4. Step 4: Simplify right side
    567,805.20x = 460,056,100,466.16
  5. Step 5: Solve for x
    x = 460,056,100,466.16/567,805.20
  6. Step 6: Final answer
    x = 810,235.80

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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.