Home / 641,997.40-963,111.30-268,058.20

Finding the Fourth Proportional to 641,997.40, 963,111.30 and 268,058.20

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Solution

The fourth proportional to 641,997.40, 963,111.30 and 268,058.20 is: 402,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,997.40 : 963,111.30 = 268,058.20 : x
  2. Step 2: Convert to fraction form
    641,997.40/963,111.30 = 268,058.20/x
  3. Step 3: Cross multiply
    641,997.40x = 963,111.30 × 268,058.20
  4. Step 4: Simplify right side
    641,997.40x = 258,169,881,477.66
  5. Step 5: Solve for x
    x = 258,169,881,477.66/641,997.40
  6. Step 6: Final answer
    x = 402,135.40

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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.