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Finding the Fourth Proportional to 1,664,566.71, 2,498,162.72 and 854,918.35

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Solution

The fourth proportional to 1,664,566.71, 2,498,162.72 and 854,918.35 is: 1,283,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,566.71 : 2,498,162.72 = 854,918.35 : x
  2. Step 2: Convert to fraction form
    1,664,566.71/2,498,162.72 = 854,918.35/x
  3. Step 3: Cross multiply
    1,664,566.71x = 2,498,162.72 × 854,918.35
  4. Step 4: Simplify right side
    1,664,566.71x = 2,135,725,140,093.91
  5. Step 5: Solve for x
    x = 2,135,725,140,093.91/1,664,566.71
  6. Step 6: Final answer
    x = 1,283,051.70

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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.