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Finding the Fourth Proportional to 633,544.49, 874,313.16 and 347,064.50

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Solution

The fourth proportional to 633,544.49, 874,313.16 and 347,064.50 is: 478,960.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,544.49 : 874,313.16 = 347,064.50 : x
  2. Step 2: Convert to fraction form
    633,544.49/874,313.16 = 347,064.50/x
  3. Step 3: Cross multiply
    633,544.49x = 874,313.16 × 347,064.50
  4. Step 4: Simplify right side
    633,544.49x = 303,443,059,718.82
  5. Step 5: Solve for x
    x = 303,443,059,718.82/633,544.49
  6. Step 6: Final answer
    x = 478,960.93

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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.