Home / 435,933.40-653,908.32-120,398.68

Finding the Fourth Proportional to 435,933.40, 653,908.32 and 120,398.68

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Solution

The fourth proportional to 435,933.40, 653,908.32 and 120,398.68 is: 180,600.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,933.40 : 653,908.32 = 120,398.68 : x
  2. Step 2: Convert to fraction form
    435,933.40/653,908.32 = 120,398.68/x
  3. Step 3: Cross multiply
    435,933.40x = 653,908.32 × 120,398.68
  4. Step 4: Simplify right side
    435,933.40x = 78,729,698,569.02
  5. Step 5: Solve for x
    x = 78,729,698,569.02/435,933.40
  6. Step 6: Final answer
    x = 180,600.29

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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.