Home / 435,829.12-653,786.16-169,611.28

Finding the Fourth Proportional to 435,829.12, 653,786.16 and 169,611.28

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Solution

The fourth proportional to 435,829.12, 653,786.16 and 169,611.28 is: 254,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,829.12 : 653,786.16 = 169,611.28 : x
  2. Step 2: Convert to fraction form
    435,829.12/653,786.16 = 169,611.28/x
  3. Step 3: Cross multiply
    435,829.12x = 653,786.16 × 169,611.28
  4. Step 4: Simplify right side
    435,829.12x = 110,889,507,443.89
  5. Step 5: Solve for x
    x = 110,889,507,443.89/435,829.12
  6. Step 6: Final answer
    x = 254,433.45

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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.