Home / 811,496.40-1,217,244.60-529,486.80

Finding the Fourth Proportional to 811,496.40, 1,217,244.60 and 529,486.80

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Solution

The fourth proportional to 811,496.40, 1,217,244.60 and 529,486.80 is: 794,230.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,496.40 : 1,217,244.60 = 529,486.80 : x
  2. Step 2: Convert to fraction form
    811,496.40/1,217,244.60 = 529,486.80/x
  3. Step 3: Cross multiply
    811,496.40x = 1,217,244.60 × 529,486.80
  4. Step 4: Simplify right side
    811,496.40x = 644,514,948,071.28
  5. Step 5: Solve for x
    x = 644,514,948,071.28/811,496.40
  6. Step 6: Final answer
    x = 794,230.20

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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.