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Finding the Fourth Proportional to 578,052.06, 866,898.81 and 203,987.58

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Solution

The fourth proportional to 578,052.06, 866,898.81 and 203,987.58 is: 305,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,052.06 : 866,898.81 = 203,987.58 : x
  2. Step 2: Convert to fraction form
    578,052.06/866,898.81 = 203,987.58/x
  3. Step 3: Cross multiply
    578,052.06x = 866,898.81 × 203,987.58
  4. Step 4: Simplify right side
    578,052.06x = 176,836,590,356.78
  5. Step 5: Solve for x
    x = 176,836,590,356.78/578,052.06
  6. Step 6: Final answer
    x = 305,918.10

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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.