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Finding the Fourth Proportional to 470,560.80, 705,841.20 and 447,232.80

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Solution

The fourth proportional to 470,560.80, 705,841.20 and 447,232.80 is: 670,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,560.80 : 705,841.20 = 447,232.80 : x
  2. Step 2: Convert to fraction form
    470,560.80/705,841.20 = 447,232.80/x
  3. Step 3: Cross multiply
    470,560.80x = 705,841.20 × 447,232.80
  4. Step 4: Simplify right side
    470,560.80x = 315,675,336,231.36
  5. Step 5: Solve for x
    x = 315,675,336,231.36/470,560.80
  6. Step 6: Final answer
    x = 670,849.20

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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.