Home / 827,780.10-1,241,000.47-258,868.50

Finding the Fourth Proportional to 827,780.10, 1,241,000.47 and 258,868.50

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Solution

The fourth proportional to 827,780.10, 1,241,000.47 and 258,868.50 is: 388,093.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,780.10 : 1,241,000.47 = 258,868.50 : x
  2. Step 2: Convert to fraction form
    827,780.10/1,241,000.47 = 258,868.50/x
  3. Step 3: Cross multiply
    827,780.10x = 1,241,000.47 × 258,868.50
  4. Step 4: Simplify right side
    827,780.10x = 321,255,930,168.20
  5. Step 5: Solve for x
    x = 321,255,930,168.20/827,780.10
  6. Step 6: Final answer
    x = 388,093.32

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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.