Home / 427,816.25-590,393.39-234,220.70

Finding the Fourth Proportional to 427,816.25, 590,393.39 and 234,220.70

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Solution

The fourth proportional to 427,816.25, 590,393.39 and 234,220.70 is: 323,228.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,816.25 : 590,393.39 = 234,220.70 : x
  2. Step 2: Convert to fraction form
    427,816.25/590,393.39 = 234,220.70/x
  3. Step 3: Cross multiply
    427,816.25x = 590,393.39 × 234,220.70
  4. Step 4: Simplify right side
    427,816.25x = 138,282,352,041.33
  5. Step 5: Solve for x
    x = 138,282,352,041.33/427,816.25
  6. Step 6: Final answer
    x = 323,228.37

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.