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Finding the Fourth Proportional to 881,713.75, 1,321,464.21 and 476,889.80

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Solution

The fourth proportional to 881,713.75, 1,321,464.21 and 476,889.80 is: 714,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,713.75 : 1,321,464.21 = 476,889.80 : x
  2. Step 2: Convert to fraction form
    881,713.75/1,321,464.21 = 476,889.80/x
  3. Step 3: Cross multiply
    881,713.75x = 1,321,464.21 × 476,889.80
  4. Step 4: Simplify right side
    881,713.75x = 630,192,796,206.74
  5. Step 5: Solve for x
    x = 630,192,796,206.74/881,713.75
  6. Step 6: Final answer
    x = 714,736.27

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Double scale
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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.