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Finding the Fourth Proportional to 1,569,905.40, 2,354,858.10 and 940,049.40

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Solution

The fourth proportional to 1,569,905.40, 2,354,858.10 and 940,049.40 is: 1,410,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,905.40 : 2,354,858.10 = 940,049.40 : x
  2. Step 2: Convert to fraction form
    1,569,905.40/2,354,858.10 = 940,049.40/x
  3. Step 3: Cross multiply
    1,569,905.40x = 2,354,858.10 × 940,049.40
  4. Step 4: Simplify right side
    1,569,905.40x = 2,213,682,943,990.14
  5. Step 5: Solve for x
    x = 2,213,682,943,990.14/1,569,905.40
  6. Step 6: Final answer
    x = 1,410,074.10

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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.