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Finding the Fourth Proportional to 1,898,560.82, 2,621,282.61 and 1,124,440.73

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Solution

The fourth proportional to 1,898,560.82, 2,621,282.61 and 1,124,440.73 is: 1,552,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,560.82 : 2,621,282.61 = 1,124,440.73 : x
  2. Step 2: Convert to fraction form
    1,898,560.82/2,621,282.61 = 1,124,440.73/x
  3. Step 3: Cross multiply
    1,898,560.82x = 2,621,282.61 × 1,124,440.73
  4. Step 4: Simplify right side
    1,898,560.82x = 2,947,476,947,209.47
  5. Step 5: Solve for x
    x = 2,947,476,947,209.47/1,898,560.82
  6. Step 6: Final answer
    x = 1,552,479.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.