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Finding the Fourth Proportional to 325,630.60, 488,445.90 and 176,331.40

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Solution

The fourth proportional to 325,630.60, 488,445.90 and 176,331.40 is: 264,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,630.60 : 488,445.90 = 176,331.40 : x
  2. Step 2: Convert to fraction form
    325,630.60/488,445.90 = 176,331.40/x
  3. Step 3: Cross multiply
    325,630.60x = 488,445.90 × 176,331.40
  4. Step 4: Simplify right side
    325,630.60x = 86,128,349,371.26
  5. Step 5: Solve for x
    x = 86,128,349,371.26/325,630.60
  6. Step 6: Final answer
    x = 264,497.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.