Home / 886,829.90-1,330,244.85-512,660.30

Finding the Fourth Proportional to 886,829.90, 1,330,244.85 and 512,660.30

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Solution

The fourth proportional to 886,829.90, 1,330,244.85 and 512,660.30 is: 768,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,829.90 : 1,330,244.85 = 512,660.30 : x
  2. Step 2: Convert to fraction form
    886,829.90/1,330,244.85 = 512,660.30/x
  3. Step 3: Cross multiply
    886,829.90x = 1,330,244.85 × 512,660.30
  4. Step 4: Simplify right side
    886,829.90x = 681,963,723,874.46
  5. Step 5: Solve for x
    x = 681,963,723,874.46/886,829.90
  6. Step 6: Final answer
    x = 768,990.45

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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.