Home / 791,395.19-1,092,145.53-485,640.44

Finding the Fourth Proportional to 791,395.19, 1,092,145.53 and 485,640.44

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Solution

The fourth proportional to 791,395.19, 1,092,145.53 and 485,640.44 is: 670,196.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,395.19 : 1,092,145.53 = 485,640.44 : x
  2. Step 2: Convert to fraction form
    791,395.19/1,092,145.53 = 485,640.44/x
  3. Step 3: Cross multiply
    791,395.19x = 1,092,145.53 × 485,640.44
  4. Step 4: Simplify right side
    791,395.19x = 530,390,039,600.79
  5. Step 5: Solve for x
    x = 530,390,039,600.79/791,395.19
  6. Step 6: Final answer
    x = 670,196.18

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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.