Home / 886,862.90-1,330,294.35-512,693.30

Finding the Fourth Proportional to 886,862.90, 1,330,294.35 and 512,693.30

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Solution

The fourth proportional to 886,862.90, 1,330,294.35 and 512,693.30 is: 769,039.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,862.90 : 1,330,294.35 = 512,693.30 : x
  2. Step 2: Convert to fraction form
    886,862.90/1,330,294.35 = 512,693.30/x
  3. Step 3: Cross multiply
    886,862.90x = 1,330,294.35 × 512,693.30
  4. Step 4: Simplify right side
    886,862.90x = 682,033,000,272.86
  5. Step 5: Solve for x
    x = 682,033,000,272.86/886,862.90
  6. Step 6: Final answer
    x = 769,039.95

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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.