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Finding the Fourth Proportional to 611,954.16, 844,803.72 and 382,638.96

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Solution

The fourth proportional to 611,954.16, 844,803.72 and 382,638.96 is: 528,233.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,954.16 : 844,803.72 = 382,638.96 : x
  2. Step 2: Convert to fraction form
    611,954.16/844,803.72 = 382,638.96/x
  3. Step 3: Cross multiply
    611,954.16x = 844,803.72 × 382,638.96
  4. Step 4: Simplify right side
    611,954.16x = 323,254,816,824.93
  5. Step 5: Solve for x
    x = 323,254,816,824.93/611,954.16
  6. Step 6: Final answer
    x = 528,233.71

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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.