Home / 1,281,695.70-1,922,543.55-618,143.70

Finding the Fourth Proportional to 1,281,695.70, 1,922,543.55 and 618,143.70

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Solution

The fourth proportional to 1,281,695.70, 1,922,543.55 and 618,143.70 is: 927,215.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,695.70 : 1,922,543.55 = 618,143.70 : x
  2. Step 2: Convert to fraction form
    1,281,695.70/1,922,543.55 = 618,143.70/x
  3. Step 3: Cross multiply
    1,281,695.70x = 1,922,543.55 × 618,143.70
  4. Step 4: Simplify right side
    1,281,695.70x = 1,188,408,183,408.14
  5. Step 5: Solve for x
    x = 1,188,408,183,408.14/1,281,695.70
  6. Step 6: Final answer
    x = 927,215.55

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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.