Home / 939,773.40-1,409,660.10-541,642.20

Finding the Fourth Proportional to 939,773.40, 1,409,660.10 and 541,642.20

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Solution

The fourth proportional to 939,773.40, 1,409,660.10 and 541,642.20 is: 812,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,773.40 : 1,409,660.10 = 541,642.20 : x
  2. Step 2: Convert to fraction form
    939,773.40/1,409,660.10 = 541,642.20/x
  3. Step 3: Cross multiply
    939,773.40x = 1,409,660.10 × 541,642.20
  4. Step 4: Simplify right side
    939,773.40x = 763,531,397,816.22
  5. Step 5: Solve for x
    x = 763,531,397,816.22/939,773.40
  6. Step 6: Final answer
    x = 812,463.30

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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.