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Finding the Fourth Proportional to 1,765,972.60, 2,648,958.90 and 1,636,064.80

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Solution

The fourth proportional to 1,765,972.60, 2,648,958.90 and 1,636,064.80 is: 2,454,097.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,765,972.60 : 2,648,958.90 = 1,636,064.80 : x
  2. Step 2: Convert to fraction form
    1,765,972.60/2,648,958.90 = 1,636,064.80/x
  3. Step 3: Cross multiply
    1,765,972.60x = 2,648,958.90 × 1,636,064.80
  4. Step 4: Simplify right side
    1,765,972.60x = 4,333,868,412,936.72
  5. Step 5: Solve for x
    x = 4,333,868,412,936.72/1,765,972.60
  6. Step 6: Final answer
    x = 2,454,097.20

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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.