Home / 864,388.38-1,193,012.11-515,551.16

Finding the Fourth Proportional to 864,388.38, 1,193,012.11 and 515,551.16

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Solution

The fourth proportional to 864,388.38, 1,193,012.11 and 515,551.16 is: 711,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,388.38 : 1,193,012.11 = 515,551.16 : x
  2. Step 2: Convert to fraction form
    864,388.38/1,193,012.11 = 515,551.16/x
  3. Step 3: Cross multiply
    864,388.38x = 1,193,012.11 × 515,551.16
  4. Step 4: Simplify right side
    864,388.38x = 615,058,771,220.85
  5. Step 5: Solve for x
    x = 615,058,771,220.85/864,388.38
  6. Step 6: Final answer
    x = 711,553.73

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.