Home / 818,610.57-1,129,716.50-456,034.23

Finding the Fourth Proportional to 818,610.57, 1,129,716.50 and 456,034.23

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Solution

The fourth proportional to 818,610.57, 1,129,716.50 and 456,034.23 is: 629,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,610.57 : 1,129,716.50 = 456,034.23 : x
  2. Step 2: Convert to fraction form
    818,610.57/1,129,716.50 = 456,034.23/x
  3. Step 3: Cross multiply
    818,610.57x = 1,129,716.50 × 456,034.23
  4. Step 4: Simplify right side
    818,610.57x = 515,189,391,915.62
  5. Step 5: Solve for x
    x = 515,189,391,915.62/818,610.57
  6. Step 6: Final answer
    x = 629,346.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.