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Finding the Fourth Proportional to 603,362.61, 832,645.76 and 331,436.03

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Solution

The fourth proportional to 603,362.61, 832,645.76 and 331,436.03 is: 457,384.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,362.61 : 832,645.76 = 331,436.03 : x
  2. Step 2: Convert to fraction form
    603,362.61/832,645.76 = 331,436.03/x
  3. Step 3: Cross multiply
    603,362.61x = 832,645.76 × 331,436.03
  4. Step 4: Simplify right side
    603,362.61x = 275,968,799,270.32
  5. Step 5: Solve for x
    x = 275,968,799,270.32/603,362.61
  6. Step 6: Final answer
    x = 457,384.66

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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.