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Finding the Fourth Proportional to 348,523.20, 523,173.60 and 325,681.20

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Solution

The fourth proportional to 348,523.20, 523,173.60 and 325,681.20 is: 488,885.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,523.20 : 523,173.60 = 325,681.20 : x
  2. Step 2: Convert to fraction form
    348,523.20/523,173.60 = 325,681.20/x
  3. Step 3: Cross multiply
    348,523.20x = 523,173.60 × 325,681.20
  4. Step 4: Simplify right side
    348,523.20x = 170,387,805,856.32
  5. Step 5: Solve for x
    x = 170,387,805,856.32/348,523.20
  6. Step 6: Final answer
    x = 488,885.12

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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.