Home / 819,330.80-1,228,996.20-535,895.60

Finding the Fourth Proportional to 819,330.80, 1,228,996.20 and 535,895.60

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Solution

The fourth proportional to 819,330.80, 1,228,996.20 and 535,895.60 is: 803,843.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,330.80 : 1,228,996.20 = 535,895.60 : x
  2. Step 2: Convert to fraction form
    819,330.80/1,228,996.20 = 535,895.60/x
  3. Step 3: Cross multiply
    819,330.80x = 1,228,996.20 × 535,895.60
  4. Step 4: Simplify right side
    819,330.80x = 658,613,655,996.72
  5. Step 5: Solve for x
    x = 658,613,655,996.72/819,330.80
  6. Step 6: Final answer
    x = 803,843.40

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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.