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Finding the Fourth Proportional to 427,818.62, 590,396.65 and 234,223.06

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Solution

The fourth proportional to 427,818.62, 590,396.65 and 234,223.06 is: 323,231.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,818.62 : 590,396.65 = 234,223.06 : x
  2. Step 2: Convert to fraction form
    427,818.62/590,396.65 = 234,223.06/x
  3. Step 3: Cross multiply
    427,818.62x = 590,396.65 × 234,223.06
  4. Step 4: Simplify right side
    427,818.62x = 138,284,509,976.75
  5. Step 5: Solve for x
    x = 138,284,509,976.75/427,818.62
  6. Step 6: Final answer
    x = 323,231.63

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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.