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Finding the Fourth Proportional to 1,882,939.84, 2,824,429.44 and 745,978.72

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Solution

The fourth proportional to 1,882,939.84, 2,824,429.44 and 745,978.72 is: 1,118,975.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,882,939.84 : 2,824,429.44 = 745,978.72 : x
  2. Step 2: Convert to fraction form
    1,882,939.84/2,824,429.44 = 745,978.72/x
  3. Step 3: Cross multiply
    1,882,939.84x = 2,824,429.44 × 745,978.72
  4. Step 4: Simplify right side
    1,882,939.84x = 2,106,964,258,381.52
  5. Step 5: Solve for x
    x = 2,106,964,258,381.52/1,882,939.84
  6. Step 6: Final answer
    x = 1,118,975.88

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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.