Home / 773,773.05-1,160,659.58-640,803.45

Finding the Fourth Proportional to 773,773.05, 1,160,659.58 and 640,803.45

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Solution

The fourth proportional to 773,773.05, 1,160,659.58 and 640,803.45 is: 961,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,773.05 : 1,160,659.58 = 640,803.45 : x
  2. Step 2: Convert to fraction form
    773,773.05/1,160,659.58 = 640,803.45/x
  3. Step 3: Cross multiply
    773,773.05x = 1,160,659.58 × 640,803.45
  4. Step 4: Simplify right side
    773,773.05x = 743,754,659,935.53
  5. Step 5: Solve for x
    x = 743,754,659,935.53/773,773.05
  6. Step 6: Final answer
    x = 961,205.18

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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.