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Finding the Fourth Proportional to 552,681.20, 829,459.20 and 215,883.20

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Solution

The fourth proportional to 552,681.20, 829,459.20 and 215,883.20 is: 323,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,681.20 : 829,459.20 = 215,883.20 : x
  2. Step 2: Convert to fraction form
    552,681.20/829,459.20 = 215,883.20/x
  3. Step 3: Cross multiply
    552,681.20x = 829,459.20 × 215,883.20
  4. Step 4: Simplify right side
    552,681.20x = 179,066,306,365.44
  5. Step 5: Solve for x
    x = 179,066,306,365.44/552,681.20
  6. Step 6: Final answer
    x = 323,995.65

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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.