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Finding the Fourth Proportional to 577,194.40, 865,791.60 and 470,906.20

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Solution

The fourth proportional to 577,194.40, 865,791.60 and 470,906.20 is: 706,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,194.40 : 865,791.60 = 470,906.20 : x
  2. Step 2: Convert to fraction form
    577,194.40/865,791.60 = 470,906.20/x
  3. Step 3: Cross multiply
    577,194.40x = 865,791.60 × 470,906.20
  4. Step 4: Simplify right side
    577,194.40x = 407,706,632,347.92
  5. Step 5: Solve for x
    x = 407,706,632,347.92/577,194.40
  6. Step 6: Final answer
    x = 706,359.30

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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.