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Finding the Fourth Proportional to 874,546.88, 1,311,820.56 and 675,158.32

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Solution

The fourth proportional to 874,546.88, 1,311,820.56 and 675,158.32 is: 1,012,737.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,546.88 : 1,311,820.56 = 675,158.32 : x
  2. Step 2: Convert to fraction form
    874,546.88/1,311,820.56 = 675,158.32/x
  3. Step 3: Cross multiply
    874,546.88x = 1,311,820.56 × 675,158.32
  4. Step 4: Simplify right side
    874,546.88x = 885,686,565,431.06
  5. Step 5: Solve for x
    x = 885,686,565,431.06/874,546.88
  6. Step 6: Final answer
    x = 1,012,737.67

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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.