Home / 819,982.30-1,230,328.69-440,460.25

Finding the Fourth Proportional to 819,982.30, 1,230,328.69 and 440,460.25

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Solution

The fourth proportional to 819,982.30, 1,230,328.69 and 440,460.25 is: 660,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,982.30 : 1,230,328.69 = 440,460.25 : x
  2. Step 2: Convert to fraction form
    819,982.30/1,230,328.69 = 440,460.25/x
  3. Step 3: Cross multiply
    819,982.30x = 1,230,328.69 × 440,460.25
  4. Step 4: Simplify right side
    819,982.30x = 541,910,882,379.57
  5. Step 5: Solve for x
    x = 541,910,882,379.57/819,982.30
  6. Step 6: Final answer
    x = 660,881.20

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Double scale
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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.