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Finding the Fourth Proportional to 1,358,463.88, 1,873,899.54 and 848,280.52

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Solution

The fourth proportional to 1,358,463.88, 1,873,899.54 and 848,280.52 is: 1,170,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,463.88 : 1,873,899.54 = 848,280.52 : x
  2. Step 2: Convert to fraction form
    1,358,463.88/1,873,899.54 = 848,280.52/x
  3. Step 3: Cross multiply
    1,358,463.88x = 1,873,899.54 × 848,280.52
  4. Step 4: Simplify right side
    1,358,463.88x = 1,589,592,476,218.96
  5. Step 5: Solve for x
    x = 1,589,592,476,218.96/1,358,463.88
  6. Step 6: Final answer
    x = 1,170,139.67

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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.