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Finding the Fourth Proportional to 454,717.74, 681,888.94 and 155,222.47

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Solution

The fourth proportional to 454,717.74, 681,888.94 and 155,222.47 is: 232,769.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,717.74 : 681,888.94 = 155,222.47 : x
  2. Step 2: Convert to fraction form
    454,717.74/681,888.94 = 155,222.47/x
  3. Step 3: Cross multiply
    454,717.74x = 681,888.94 × 155,222.47
  4. Step 4: Simplify right side
    454,717.74x = 105,844,485,532.48
  5. Step 5: Solve for x
    x = 105,844,485,532.48/454,717.74
  6. Step 6: Final answer
    x = 232,769.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.