Home / 612,005.22-917,072.58-256,825.49

Finding the Fourth Proportional to 612,005.22, 917,072.58 and 256,825.49

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Solution

The fourth proportional to 612,005.22, 917,072.58 and 256,825.49 is: 384,845.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,005.22 : 917,072.58 = 256,825.49 : x
  2. Step 2: Convert to fraction form
    612,005.22/917,072.58 = 256,825.49/x
  3. Step 3: Cross multiply
    612,005.22x = 917,072.58 × 256,825.49
  4. Step 4: Simplify right side
    612,005.22x = 235,527,611,101.80
  5. Step 5: Solve for x
    x = 235,527,611,101.80/612,005.22
  6. Step 6: Final answer
    x = 384,845.76

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1.5x scale

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.