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Finding the Fourth Proportional to 447,897.83, 618,110.71 and 243,956.48

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Solution

The fourth proportional to 447,897.83, 618,110.71 and 243,956.48 is: 336,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,897.83 : 618,110.71 = 243,956.48 : x
  2. Step 2: Convert to fraction form
    447,897.83/618,110.71 = 243,956.48/x
  3. Step 3: Cross multiply
    447,897.83x = 618,110.71 × 243,956.48
  4. Step 4: Simplify right side
    447,897.83x = 150,792,109,361.46
  5. Step 5: Solve for x
    x = 150,792,109,361.46/447,897.83
  6. Step 6: Final answer
    x = 336,666.31

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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.