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Finding the Fourth Proportional to 567,077.10, 850,615.65 and 378,120.30

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Solution

The fourth proportional to 567,077.10, 850,615.65 and 378,120.30 is: 567,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,077.10 : 850,615.65 = 378,120.30 : x
  2. Step 2: Convert to fraction form
    567,077.10/850,615.65 = 378,120.30/x
  3. Step 3: Cross multiply
    567,077.10x = 850,615.65 × 378,120.30
  4. Step 4: Simplify right side
    567,077.10x = 321,635,044,762.70
  5. Step 5: Solve for x
    x = 321,635,044,762.70/567,077.10
  6. Step 6: Final answer
    x = 567,180.45

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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.