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Finding the Fourth Proportional to 228,464.32, 315,270.47 and 126,482.62

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Solution

The fourth proportional to 228,464.32, 315,270.47 and 126,482.62 is: 174,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,464.32 : 315,270.47 = 126,482.62 : x
  2. Step 2: Convert to fraction form
    228,464.32/315,270.47 = 126,482.62/x
  3. Step 3: Cross multiply
    228,464.32x = 315,270.47 × 126,482.62
  4. Step 4: Simplify right side
    228,464.32x = 39,876,232,845.47
  5. Step 5: Solve for x
    x = 39,876,232,845.47/228,464.32
  6. Step 6: Final answer
    x = 174,540.31

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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.