Home / 827,541.40-1,240,145.70-511,058.20

Finding the Fourth Proportional to 827,541.40, 1,240,145.70 and 511,058.20

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Solution

The fourth proportional to 827,541.40, 1,240,145.70 and 511,058.20 is: 765,866.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,541.40 : 1,240,145.70 = 511,058.20 : x
  2. Step 2: Convert to fraction form
    827,541.40/1,240,145.70 = 511,058.20/x
  3. Step 3: Cross multiply
    827,541.40x = 1,240,145.70 × 511,058.20
  4. Step 4: Simplify right side
    827,541.40x = 633,786,629,179.74
  5. Step 5: Solve for x
    x = 633,786,629,179.74/827,541.40
  6. Step 6: Final answer
    x = 765,866.98

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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.