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Finding the Fourth Proportional to 1,858,553.00, 2,787,829.65 and 660,522.60

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Solution

The fourth proportional to 1,858,553.00, 2,787,829.65 and 660,522.60 is: 990,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858,553.00 : 2,787,829.65 = 660,522.60 : x
  2. Step 2: Convert to fraction form
    1,858,553.00/2,787,829.65 = 660,522.60/x
  3. Step 3: Cross multiply
    1,858,553.00x = 2,787,829.65 × 660,522.60
  4. Step 4: Simplify right side
    1,858,553.00x = 1,841,424,488,775.09
  5. Step 5: Solve for x
    x = 1,841,424,488,775.09/1,858,553.00
  6. Step 6: Final answer
    x = 990,783.95

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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.