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Finding the Fourth Proportional to 633,541.75, 874,309.37 and 347,061.76

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Solution

The fourth proportional to 633,541.75, 874,309.37 and 347,061.76 is: 478,957.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,541.75 : 874,309.37 = 347,061.76 : x
  2. Step 2: Convert to fraction form
    633,541.75/874,309.37 = 347,061.76/x
  3. Step 3: Cross multiply
    633,541.75x = 874,309.37 × 347,061.76
  4. Step 4: Simplify right side
    633,541.75x = 303,439,344,815.61
  5. Step 5: Solve for x
    x = 303,439,344,815.61/633,541.75
  6. Step 6: Final answer
    x = 478,957.14

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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.