Home / 866,520.90-1,299,781.35-446,616.90

Finding the Fourth Proportional to 866,520.90, 1,299,781.35 and 446,616.90

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Solution

The fourth proportional to 866,520.90, 1,299,781.35 and 446,616.90 is: 669,925.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,520.90 : 1,299,781.35 = 446,616.90 : x
  2. Step 2: Convert to fraction form
    866,520.90/1,299,781.35 = 446,616.90/x
  3. Step 3: Cross multiply
    866,520.90x = 1,299,781.35 × 446,616.90
  4. Step 4: Simplify right side
    866,520.90x = 580,504,317,214.82
  5. Step 5: Solve for x
    x = 580,504,317,214.82/866,520.90
  6. Step 6: Final answer
    x = 669,925.35

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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.