Home / 769,712.15-1,062,232.31-511,142.08

Finding the Fourth Proportional to 769,712.15, 1,062,232.31 and 511,142.08

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Solution

The fourth proportional to 769,712.15, 1,062,232.31 and 511,142.08 is: 705,395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,712.15 : 1,062,232.31 = 511,142.08 : x
  2. Step 2: Convert to fraction form
    769,712.15/1,062,232.31 = 511,142.08/x
  3. Step 3: Cross multiply
    769,712.15x = 1,062,232.31 × 511,142.08
  4. Step 4: Simplify right side
    769,712.15x = 542,951,624,509.73
  5. Step 5: Solve for x
    x = 542,951,624,509.73/769,712.15
  6. Step 6: Final answer
    x = 705,395.68

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Double scale
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1.5x scale

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.