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Finding the Fourth Proportional to 1,954,285.50, 2,696,598.99 and 1,228,619.10

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Solution

The fourth proportional to 1,954,285.50, 2,696,598.99 and 1,228,619.10 is: 1,695,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954,285.50 : 2,696,598.99 = 1,228,619.10 : x
  2. Step 2: Convert to fraction form
    1,954,285.50/2,696,598.99 = 1,228,619.10/x
  3. Step 3: Cross multiply
    1,954,285.50x = 2,696,598.99 × 1,228,619.10
  4. Step 4: Simplify right side
    1,954,285.50x = 3,313,093,024,154.71
  5. Step 5: Solve for x
    x = 3,313,093,024,154.71/1,954,285.50
  6. Step 6: Final answer
    x = 1,695,296.32

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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.