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Finding the Fourth Proportional to 534,711.40, 802,067.10 and 476,650.60

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Solution

The fourth proportional to 534,711.40, 802,067.10 and 476,650.60 is: 714,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,711.40 : 802,067.10 = 476,650.60 : x
  2. Step 2: Convert to fraction form
    534,711.40/802,067.10 = 476,650.60/x
  3. Step 3: Cross multiply
    534,711.40x = 802,067.10 × 476,650.60
  4. Step 4: Simplify right side
    534,711.40x = 382,305,764,455.26
  5. Step 5: Solve for x
    x = 382,305,764,455.26/534,711.40
  6. Step 6: Final answer
    x = 714,975.90

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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.