Home / 804,961.40-1,207,442.10-385,057.40

Finding the Fourth Proportional to 804,961.40, 1,207,442.10 and 385,057.40

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Solution

The fourth proportional to 804,961.40, 1,207,442.10 and 385,057.40 is: 577,586.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,961.40 : 1,207,442.10 = 385,057.40 : x
  2. Step 2: Convert to fraction form
    804,961.40/1,207,442.10 = 385,057.40/x
  3. Step 3: Cross multiply
    804,961.40x = 1,207,442.10 × 385,057.40
  4. Step 4: Simplify right side
    804,961.40x = 464,934,515,676.54
  5. Step 5: Solve for x
    x = 464,934,515,676.54/804,961.40
  6. Step 6: Final answer
    x = 577,586.10

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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.