Home / 424,920.15-637,380.29-140,534.37

Finding the Fourth Proportional to 424,920.15, 637,380.29 and 140,534.37

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Solution

The fourth proportional to 424,920.15, 637,380.29 and 140,534.37 is: 210,801.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,920.15 : 637,380.29 = 140,534.37 : x
  2. Step 2: Convert to fraction form
    424,920.15/637,380.29 = 140,534.37/x
  3. Step 3: Cross multiply
    424,920.15x = 637,380.29 × 140,534.37
  4. Step 4: Simplify right side
    424,920.15x = 89,573,837,856.90
  5. Step 5: Solve for x
    x = 89,573,837,856.90/424,920.15
  6. Step 6: Final answer
    x = 210,801.58

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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.