Home / 818,575.91-1,129,669.60-455,999.33

Finding the Fourth Proportional to 818,575.91, 1,129,669.60 and 455,999.33

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Solution

The fourth proportional to 818,575.91, 1,129,669.60 and 455,999.33 is: 629,298.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,575.91 : 1,129,669.60 = 455,999.33 : x
  2. Step 2: Convert to fraction form
    818,575.91/1,129,669.60 = 455,999.33/x
  3. Step 3: Cross multiply
    818,575.91x = 1,129,669.60 × 455,999.33
  4. Step 4: Simplify right side
    818,575.91x = 515,128,580,721.37
  5. Step 5: Solve for x
    x = 515,128,580,721.37/818,575.91
  6. Step 6: Final answer
    x = 629,298.49

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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.