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Finding the Fourth Proportional to 1,609,244.76, 2,415,978.04 and 1,079,138.64

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Solution

The fourth proportional to 1,609,244.76, 2,415,978.04 and 1,079,138.64 is: 1,620,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,244.76 : 2,415,978.04 = 1,079,138.64 : x
  2. Step 2: Convert to fraction form
    1,609,244.76/2,415,978.04 = 1,079,138.64/x
  3. Step 3: Cross multiply
    1,609,244.76x = 2,415,978.04 × 1,079,138.64
  4. Step 4: Simplify right side
    1,609,244.76x = 2,607,175,256,355.47
  5. Step 5: Solve for x
    x = 2,607,175,256,355.47/1,609,244.76
  6. Step 6: Final answer
    x = 1,620,123.50

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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.