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Finding the Fourth Proportional to 2,668,921.92, 4,004,602.80 and 1,452,676.53

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Solution

The fourth proportional to 2,668,921.92, 4,004,602.80 and 1,452,676.53 is: 2,179,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668,921.92 : 4,004,602.80 = 1,452,676.53 : x
  2. Step 2: Convert to fraction form
    2,668,921.92/4,004,602.80 = 1,452,676.53/x
  3. Step 3: Cross multiply
    2,668,921.92x = 4,004,602.80 × 1,452,676.53
  4. Step 4: Simplify right side
    2,668,921.92x = 5,817,392,499,532.28
  5. Step 5: Solve for x
    x = 5,817,392,499,532.28/2,668,921.92
  6. Step 6: Final answer
    x = 2,179,678.79

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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.