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Finding the Fourth Proportional to 609,821.46, 841,615.92 and 351,708.48

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Solution

The fourth proportional to 609,821.46, 841,615.92 and 351,708.48 is: 485,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,821.46 : 841,615.92 = 351,708.48 : x
  2. Step 2: Convert to fraction form
    609,821.46/841,615.92 = 351,708.48/x
  3. Step 3: Cross multiply
    609,821.46x = 841,615.92 × 351,708.48
  4. Step 4: Simplify right side
    609,821.46x = 296,003,455,967.00
  5. Step 5: Solve for x
    x = 296,003,455,967.00/609,821.46
  6. Step 6: Final answer
    x = 485,393.64

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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.