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Finding the Fourth Proportional to 662,698.80, 994,048.20 and 307,594.80

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Solution

The fourth proportional to 662,698.80, 994,048.20 and 307,594.80 is: 461,392.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,698.80 : 994,048.20 = 307,594.80 : x
  2. Step 2: Convert to fraction form
    662,698.80/994,048.20 = 307,594.80/x
  3. Step 3: Cross multiply
    662,698.80x = 994,048.20 × 307,594.80
  4. Step 4: Simplify right side
    662,698.80x = 305,764,057,269.36
  5. Step 5: Solve for x
    x = 305,764,057,269.36/662,698.80
  6. Step 6: Final answer
    x = 461,392.20

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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.