Home / 627,297.09-865,743.78-372,648.27

Finding the Fourth Proportional to 627,297.09, 865,743.78 and 372,648.27

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Solution

The fourth proportional to 627,297.09, 865,743.78 and 372,648.27 is: 514,298.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,297.09 : 865,743.78 = 372,648.27 : x
  2. Step 2: Convert to fraction form
    627,297.09/865,743.78 = 372,648.27/x
  3. Step 3: Cross multiply
    627,297.09x = 865,743.78 × 372,648.27
  4. Step 4: Simplify right side
    627,297.09x = 322,617,926,524.23
  5. Step 5: Solve for x
    x = 322,617,926,524.23/627,297.09
  6. Step 6: Final answer
    x = 514,298.46

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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.