Home / 945,801.64-1,418,687.41-440,079.76

Finding the Fourth Proportional to 945,801.64, 1,418,687.41 and 440,079.76

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Solution

The fourth proportional to 945,801.64, 1,418,687.41 and 440,079.76 is: 660,112.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,801.64 : 1,418,687.41 = 440,079.76 : x
  2. Step 2: Convert to fraction form
    945,801.64/1,418,687.41 = 440,079.76/x
  3. Step 3: Cross multiply
    945,801.64x = 1,418,687.41 × 440,079.76
  4. Step 4: Simplify right side
    945,801.64x = 624,335,614,907.82
  5. Step 5: Solve for x
    x = 624,335,614,907.82/945,801.64
  6. Step 6: Final answer
    x = 660,112.64

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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.