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Finding the Fourth Proportional to 674,628.94, 930,897.97 and 433,238.48

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Solution

The fourth proportional to 674,628.94, 930,897.97 and 433,238.48 is: 597,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,628.94 : 930,897.97 = 433,238.48 : x
  2. Step 2: Convert to fraction form
    674,628.94/930,897.97 = 433,238.48/x
  3. Step 3: Cross multiply
    674,628.94x = 930,897.97 × 433,238.48
  4. Step 4: Simplify right side
    674,628.94x = 403,300,821,557.89
  5. Step 5: Solve for x
    x = 403,300,821,557.89/674,628.94
  6. Step 6: Final answer
    x = 597,811.33

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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.