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Finding the Fourth Proportional to 1,964,982.54, 2,947,473.63 and 545,038.68

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Solution

The fourth proportional to 1,964,982.54, 2,947,473.63 and 545,038.68 is: 817,557.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964,982.54 : 2,947,473.63 = 545,038.68 : x
  2. Step 2: Convert to fraction form
    1,964,982.54/2,947,473.63 = 545,038.68/x
  3. Step 3: Cross multiply
    1,964,982.54x = 2,947,473.63 × 545,038.68
  4. Step 4: Simplify right side
    1,964,982.54x = 1,606,487,136,630.01
  5. Step 5: Solve for x
    x = 1,606,487,136,630.01/1,964,982.54
  6. Step 6: Final answer
    x = 817,557.97

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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.