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Finding the Fourth Proportional to 602,930.38, 903,213.20 and 349,678.84

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Solution

The fourth proportional to 602,930.38, 903,213.20 and 349,678.84 is: 523,832.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,930.38 : 903,213.20 = 349,678.84 : x
  2. Step 2: Convert to fraction form
    602,930.38/903,213.20 = 349,678.84/x
  3. Step 3: Cross multiply
    602,930.38x = 903,213.20 × 349,678.84
  4. Step 4: Simplify right side
    602,930.38x = 315,834,544,048.69
  5. Step 5: Solve for x
    x = 315,834,544,048.69/602,930.38
  6. Step 6: Final answer
    x = 523,832.53

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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.