Home / 435,766.47-653,687.38-120,223.37

Finding the Fourth Proportional to 435,766.47, 653,687.38 and 120,223.37

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Solution

The fourth proportional to 435,766.47, 653,687.38 and 120,223.37 is: 180,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,766.47 : 653,687.38 = 120,223.37 : x
  2. Step 2: Convert to fraction form
    435,766.47/653,687.38 = 120,223.37/x
  3. Step 3: Cross multiply
    435,766.47x = 653,687.38 × 120,223.37
  4. Step 4: Simplify right side
    435,766.47x = 78,588,501,534.57
  5. Step 5: Solve for x
    x = 78,588,501,534.57/435,766.47
  6. Step 6: Final answer
    x = 180,345.45

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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.