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Finding the Fourth Proportional to 654,133.80, 981,200.70 and 475,674.60

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Solution

The fourth proportional to 654,133.80, 981,200.70 and 475,674.60 is: 713,511.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,133.80 : 981,200.70 = 475,674.60 : x
  2. Step 2: Convert to fraction form
    654,133.80/981,200.70 = 475,674.60/x
  3. Step 3: Cross multiply
    654,133.80x = 981,200.70 × 475,674.60
  4. Step 4: Simplify right side
    654,133.80x = 466,732,250,492.22
  5. Step 5: Solve for x
    x = 466,732,250,492.22/654,133.80
  6. Step 6: Final answer
    x = 713,511.90

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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.