Home / 863,411.70-1,295,117.55-628,403.70

Finding the Fourth Proportional to 863,411.70, 1,295,117.55 and 628,403.70

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Solution

The fourth proportional to 863,411.70, 1,295,117.55 and 628,403.70 is: 942,605.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,411.70 : 1,295,117.55 = 628,403.70 : x
  2. Step 2: Convert to fraction form
    863,411.70/1,295,117.55 = 628,403.70/x
  3. Step 3: Cross multiply
    863,411.70x = 1,295,117.55 × 628,403.70
  4. Step 4: Simplify right side
    863,411.70x = 813,856,660,354.94
  5. Step 5: Solve for x
    x = 813,856,660,354.94/863,411.70
  6. Step 6: Final answer
    x = 942,605.55

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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.