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Finding the Fourth Proportional to 633,371.46, 874,019.88 and 346,836.26

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Solution

The fourth proportional to 633,371.46, 874,019.88 and 346,836.26 is: 478,616.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,371.46 : 874,019.88 = 346,836.26 : x
  2. Step 2: Convert to fraction form
    633,371.46/874,019.88 = 346,836.26/x
  3. Step 3: Cross multiply
    633,371.46x = 874,019.88 × 346,836.26
  4. Step 4: Simplify right side
    633,371.46x = 303,141,786,344.85
  5. Step 5: Solve for x
    x = 303,141,786,344.85/633,371.46
  6. Step 6: Final answer
    x = 478,616.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.