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Finding the Fourth Proportional to 567,817.20, 851,725.80 and 540,169.20

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Solution

The fourth proportional to 567,817.20, 851,725.80 and 540,169.20 is: 810,253.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,817.20 : 851,725.80 = 540,169.20 : x
  2. Step 2: Convert to fraction form
    567,817.20/851,725.80 = 540,169.20/x
  3. Step 3: Cross multiply
    567,817.20x = 851,725.80 × 540,169.20
  4. Step 4: Simplify right side
    567,817.20x = 460,076,044,005.36
  5. Step 5: Solve for x
    x = 460,076,044,005.36/567,817.20
  6. Step 6: Final answer
    x = 810,253.80

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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.