Home / 913,822.83-1,369,174.19-647,140.05

Finding the Fourth Proportional to 913,822.83, 1,369,174.19 and 647,140.05

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Solution

The fourth proportional to 913,822.83, 1,369,174.19 and 647,140.05 is: 969,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,822.83 : 1,369,174.19 = 647,140.05 : x
  2. Step 2: Convert to fraction form
    913,822.83/1,369,174.19 = 647,140.05/x
  3. Step 3: Cross multiply
    913,822.83x = 1,369,174.19 × 647,140.05
  4. Step 4: Simplify right side
    913,822.83x = 886,047,450,539.61
  5. Step 5: Solve for x
    x = 886,047,450,539.61/913,822.83
  6. Step 6: Final answer
    x = 969,605.29

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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.