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Finding the Fourth Proportional to 766,613.80, 1,149,920.70 and 367,048.90

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Solution

The fourth proportional to 766,613.80, 1,149,920.70 and 367,048.90 is: 550,573.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,613.80 : 1,149,920.70 = 367,048.90 : x
  2. Step 2: Convert to fraction form
    766,613.80/1,149,920.70 = 367,048.90/x
  3. Step 3: Cross multiply
    766,613.80x = 1,149,920.70 × 367,048.90
  4. Step 4: Simplify right side
    766,613.80x = 422,077,128,022.23
  5. Step 5: Solve for x
    x = 422,077,128,022.23/766,613.80
  6. Step 6: Final answer
    x = 550,573.35

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Half scale
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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.