Home / 813,196.17-1,122,220.13-450,626.09

Finding the Fourth Proportional to 813,196.17, 1,122,220.13 and 450,626.09

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Solution

The fourth proportional to 813,196.17, 1,122,220.13 and 450,626.09 is: 621,869.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,196.17 : 1,122,220.13 = 450,626.09 : x
  2. Step 2: Convert to fraction form
    813,196.17/1,122,220.13 = 450,626.09/x
  3. Step 3: Cross multiply
    813,196.17x = 1,122,220.13 × 450,626.09
  4. Step 4: Simplify right side
    813,196.17x = 505,701,661,436.96
  5. Step 5: Solve for x
    x = 505,701,661,436.96/813,196.17
  6. Step 6: Final answer
    x = 621,869.21

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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.