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Finding the Fourth Proportional to 1,865,906.40, 2,794,712.40 and 1,534,130.40

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Solution

The fourth proportional to 1,865,906.40, 2,794,712.40 and 1,534,130.40 is: 2,297,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865,906.40 : 2,794,712.40 = 1,534,130.40 : x
  2. Step 2: Convert to fraction form
    1,865,906.40/2,794,712.40 = 1,534,130.40/x
  3. Step 3: Cross multiply
    1,865,906.40x = 2,794,712.40 × 1,534,130.40
  4. Step 4: Simplify right side
    1,865,906.40x = 4,287,453,252,096.96
  5. Step 5: Solve for x
    x = 4,287,453,252,096.96/1,865,906.40
  6. Step 6: Final answer
    x = 2,297,785.81

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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.