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Finding the Fourth Proportional to 403,057.62, 604,564.56 and 122,553

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Solution

The fourth proportional to 403,057.62, 604,564.56 and 122,553 is: 183,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,057.62 : 604,564.56 = 122,553 : x
  2. Step 2: Convert to fraction form
    403,057.62/604,564.56 = 122,553/x
  3. Step 3: Cross multiply
    403,057.62x = 604,564.56 × 122,553
  4. Step 4: Simplify right side
    403,057.62x = 74,091,200,521.68
  5. Step 5: Solve for x
    x = 74,091,200,521.68/403,057.62
  6. Step 6: Final answer
    x = 183,822.85

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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.