Home / 886,746.40-1,330,119.60-512,576.80

Finding the Fourth Proportional to 886,746.40, 1,330,119.60 and 512,576.80

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Solution

The fourth proportional to 886,746.40, 1,330,119.60 and 512,576.80 is: 768,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,746.40 : 1,330,119.60 = 512,576.80 : x
  2. Step 2: Convert to fraction form
    886,746.40/1,330,119.60 = 512,576.80/x
  3. Step 3: Cross multiply
    886,746.40x = 1,330,119.60 × 512,576.80
  4. Step 4: Simplify right side
    886,746.40x = 681,788,448,185.28
  5. Step 5: Solve for x
    x = 681,788,448,185.28/886,746.40
  6. Step 6: Final answer
    x = 768,865.20

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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.