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Finding the Fourth Proportional to 523,416.80, 785,125.20 and 484,536.80

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Solution

The fourth proportional to 523,416.80, 785,125.20 and 484,536.80 is: 726,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,416.80 : 785,125.20 = 484,536.80 : x
  2. Step 2: Convert to fraction form
    523,416.80/785,125.20 = 484,536.80/x
  3. Step 3: Cross multiply
    523,416.80x = 785,125.20 × 484,536.80
  4. Step 4: Simplify right side
    523,416.80x = 380,422,052,007.36
  5. Step 5: Solve for x
    x = 380,422,052,007.36/523,416.80
  6. Step 6: Final answer
    x = 726,805.20

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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.