Home / 827,907.12-1,240,821.78-354,035.22

Finding the Fourth Proportional to 827,907.12, 1,240,821.78 and 354,035.22

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Solution

The fourth proportional to 827,907.12, 1,240,821.78 and 354,035.22 is: 530,608.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,907.12 : 1,240,821.78 = 354,035.22 : x
  2. Step 2: Convert to fraction form
    827,907.12/1,240,821.78 = 354,035.22/x
  3. Step 3: Cross multiply
    827,907.12x = 1,240,821.78 × 354,035.22
  4. Step 4: Simplify right side
    827,907.12x = 439,294,611,863.09
  5. Step 5: Solve for x
    x = 439,294,611,863.09/827,907.12
  6. Step 6: Final answer
    x = 530,608.57

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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.