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Finding the Fourth Proportional to 349,008.54, 522,479.44 and 215,459.38

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Solution

The fourth proportional to 349,008.54, 522,479.44 and 215,459.38 is: 322,551.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,008.54 : 522,479.44 = 215,459.38 : x
  2. Step 2: Convert to fraction form
    349,008.54/522,479.44 = 215,459.38/x
  3. Step 3: Cross multiply
    349,008.54x = 522,479.44 × 215,459.38
  4. Step 4: Simplify right side
    349,008.54x = 112,573,096,205.15
  5. Step 5: Solve for x
    x = 112,573,096,205.15/349,008.54
  6. Step 6: Final answer
    x = 322,551.12

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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.