Home / 621,224.82-857,297.55-376,205.19

Finding the Fourth Proportional to 621,224.82, 857,297.55 and 376,205.19

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Solution

The fourth proportional to 621,224.82, 857,297.55 and 376,205.19 is: 519,167.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,224.82 : 857,297.55 = 376,205.19 : x
  2. Step 2: Convert to fraction form
    621,224.82/857,297.55 = 376,205.19/x
  3. Step 3: Cross multiply
    621,224.82x = 857,297.55 × 376,205.19
  4. Step 4: Simplify right side
    621,224.82x = 322,519,787,684.29
  5. Step 5: Solve for x
    x = 322,519,787,684.29/621,224.82
  6. Step 6: Final answer
    x = 519,167.58

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Half scale
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Double scale
Find fourth proportional to 621,225.82, 857,298.93 and 376,206.19
Similar ratio
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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.