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Finding the Fourth Proportional to 1,899,272.20, 2,848,908.30 and 636,795.40

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Solution

The fourth proportional to 1,899,272.20, 2,848,908.30 and 636,795.40 is: 955,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,272.20 : 2,848,908.30 = 636,795.40 : x
  2. Step 2: Convert to fraction form
    1,899,272.20/2,848,908.30 = 636,795.40/x
  3. Step 3: Cross multiply
    1,899,272.20x = 2,848,908.30 × 636,795.40
  4. Step 4: Simplify right side
    1,899,272.20x = 1,814,171,700,461.82
  5. Step 5: Solve for x
    x = 1,814,171,700,461.82/1,899,272.20
  6. Step 6: Final answer
    x = 955,193.10

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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.