Home / 820,985.75-1,231,596.14-252,414.58

Finding the Fourth Proportional to 820,985.75, 1,231,596.14 and 252,414.58

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Solution

The fourth proportional to 820,985.75, 1,231,596.14 and 252,414.58 is: 378,658.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,985.75 : 1,231,596.14 = 252,414.58 : x
  2. Step 2: Convert to fraction form
    820,985.75/1,231,596.14 = 252,414.58/x
  3. Step 3: Cross multiply
    820,985.75x = 1,231,596.14 × 252,414.58
  4. Step 4: Simplify right side
    820,985.75x = 310,872,822,407.72
  5. Step 5: Solve for x
    x = 310,872,822,407.72/820,985.75
  6. Step 6: Final answer
    x = 378,658.00

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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.