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Finding the Fourth Proportional to 977,843.70, 1,463,813.10 and 859,745.70

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Solution

The fourth proportional to 977,843.70, 1,463,813.10 and 859,745.70 is: 1,287,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,843.70 : 1,463,813.10 = 859,745.70 : x
  2. Step 2: Convert to fraction form
    977,843.70/1,463,813.10 = 859,745.70/x
  3. Step 3: Cross multiply
    977,843.70x = 1,463,813.10 × 859,745.70
  4. Step 4: Simplify right side
    977,843.70x = 1,258,507,018,328.67
  5. Step 5: Solve for x
    x = 1,258,507,018,328.67/977,843.70
  6. Step 6: Final answer
    x = 1,287,022.68

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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.